Here is an interesting video, that compares two iPhone 3G firmwares – 4.0 and 3.1.3. The recently announced iOS 4 seems to be much slower.

Left: iPhone 3G running iOS 4.0 (8A293, upgraded as restore, without final restore from backup)

Right: iPhone 3G running iPhone OS 3.1.3 (7E18)

However many users report that they have the speed of 3.1.3 on iOS 4.0.

Apple recentrly released new version of iPhone OS 4. it is called iOS 4.0 GM. Here is an update from DevTeam about iOS 4 jailbreak:

For those who can legitimately activate to the iPhone3G 4.0GM seed, the “point to previous IPSW” redsn0w trick works and will jailbreak your 4.0GM. The “trick” is to point redsn0w at the 4.0beta4 IPSW instead of 4.0GM (do this after you’ve updated to 4.0GM and activated through the new iTunes 9.2 on your Mac). Since the carrier unlocks aren’t yet supported at 4.0, don’t do this if you use yellowsn0w/ultrasn0w/blacksn0w. Many JB apps are still pretty buggy in 4.0, so again this is mostly useful only for developers of those JB apps.

Note: If you’re experiencing MobileSafari crashes, double check that you’re running the version at the bottom of this page.

For those without legit iPhone3G 4.0GM seed access, please wait until the full public 4.0 release for updates to the jailbreak tools.

You can download redsn0w 0.9.5.b4 here.

So iPhone 4 is finally unveiled and what do we have in it? Here is a list of hardware upgrades:
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WWDC 2010 is today, June 7. Here is when Steve Jobs keynote will start:

• 07:00AM – Hawaii
• 10:00AM – Pacific
• 11:00AM – Mountain
• 12:00PM – Central
• 01:00PM – Eastern
• 06:00PM – London
• 07:00PM – Paris
• 09:00PM – Moscow
• 02:00AM – Tokyo (June 8th)

We expect to see new iPhone, new iPhone OS 4, new MAC OS X 10.7, new iPhone apps, Safari 5 and Apple TV. We’ll cover the event here, on iPhoneRoot.com.

Nielsen revealed the results of a new poll of 11,734 U.S. users that claims Apple is the No.2 smartphone maker with 28% market share of mobile devices, thus gaining 2% in compare with the previous quarter. The biggest share belongs to Research In Motion, which has 35% with its Blackberries. Other smartphone makers are showed on the pictures below.

It is interesting that study reveals most of the Android and iPhone users are male, and Android users are younger, less educated and less wealthy. If only 28% of Android users earn $100,000 every year, there are 40% of iPhone users that have the same income. 34% of all smartphone users have six-figure salaries.
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As you remember, tomorrow is the day when the WWDC officially starts, but some guy named Adam Jackson made photos of inner banners at Moscone Center in San Francisco (where the conference is held).

As you can see from the photos, the main banner features the slogan “The center of the app universe”. Other banners are focused on iPhone OS and its new features. One of them reveals applications Evernote, Bento and Air Sharing gathered in one folder named “Productivity” and the slogan “Drag. Drop. Organize”.

Other banners emphasize the popularity of Apple’s App Store. “4 Billion Apps Downloaded”, «200,000 Apps on the App Store» – these are the slogans found on the photos.

The last banner has the word “appvertise”, which means it is focused on iAds, new advertising technique in iPhone OS 4.
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MacStories reader Nik Treiber has found out an interesting feature in the latest iPhone OS 4.0 beta 4. When you push the on/off button three times in a row while in the lockscreen, the iPhone goes in Flashlight mode. We aren’t sure if this is a feature or bug, but it certainly would be quite useful.

Check out the video:

Today Engadget revealed new information on the next-gen Apple TV that was received from sources close to Apple.

The architecture of the upcoming device is based on iPhone OS 4, which means it will have the same hardware (A4 system-on-chip) with 16 GB of flash memory, video out and power socket. It will be 1080p HD capable, and will look like “an iPhone without a screen”.
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Apple released information on self-publishing for those authors who would like to sell their writings in iBookStore.

So the works must adhere to these criteria:
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Ballmer had been rumored by Wall Street analyst Trip Chowdhry to be making an appearance at WWDC. He was expected to announce Microsoft’s Visual Studio 2010 with support for iPhone OS and Mac OS X development.

Here is an official tweet from Microsoft:

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Recently AdMob revealed a new metrics report that studied the numbers of iPhone OS and Adroid devices throughout the world. The company emphasized it was looking only at the devices that were at least once connected to the AdMob network:

“These unique device numbers are from the AdMob network only and reflect the adoption of our products and business operation. We don’t know what percentage of the total universe of iPhone and Android devices AdMob reaches. However we believe the data is useful on a relative basis given the large sample size of devices in our network.”

So here are the main facts and conclusions along with figures:
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Gene Munster, who is an analyst at Piper Jaffray, told yesterday that Steve Jobs won’t allegedly make a surprise with presentation of the next generation iPhone at the WorldWide Developer Conference 2010. Because of numerous prototype leaks everybody expects the iPhone 4G to have thinner design, front-facing camera, improved battery and 5MP rear camera. But Gene claimed people should not expect that a Verizon-compatible model will be presented.

“We believe that it is unlikely that the next generation iPhone will be available at Verizon (or Sprint) at launch; rather, it is more likely that it remains exclusively available at AT&T in the U.S. at launch”.

He also said Apple may start selling iPhone 3GS for $99 instead of iPhone 3G and provide a “limited demo” of new version of Mac OS X (10.7), that has all chances to support multi-touch technology as a key feature. But as we wrote before it looks like WWDC2010 will focus mainly on iPhone OS 4.0 so the preview of Mac OS X 10.7 will not allegedly happen.

Gene is assured that the presentation of iPhone 4G will have a positive influence on Apple’s stock.

“…the new iPhone will likely drive unit sales beyond Street expectations, providing a positive catalyst for shares of AAPL in the coming months.”

Last week Apple has released its iPhone Os 4.0 beta 4 and redsn0w is finally updated to support this as well as beta 1. New version of jailbreak is 0.9.5.b4 and it can be applied on iPhone 3G only(!).

Redsn0w 0.9.5.b4 is targeted at developers who make jailbroken apps, and will not work if you are already using blacksn0w, ultrasn0w or yellowsn0w.

iPhone Dev-Team warns:

“You should stay clear of this beta software if you rely on a carrier unlock.”

To use the jailbreak, follow the guide below:

1. Download redsn0w 0.9.5.b4 here. (Only Mac OS X version since app are developed on this OS).
2. Make sure you have already activated your iPhone 3G with iTunes and your own developer ID.
3. Launch the jailbreak.
4. Select your stock iPhone1,2_4.0_8A274b_Restore.ipsw (beta4) or iPhone1,2_4.0_8A230m_Restore.ipsw (beta1) file that you used to update your firmware.
5. Choose “Install Cydia” and then click “Next”. Use DFU mode to install the redsn0w.
6. When your iPhone 3G comes back up, you will notice Cydia has a blank white icon. It also has no sources so you should go to the Sources panel and add this repo: http://apt.saurik.com/cydia-3.7 (make sure you are connected to the Internet before). When Cydia restarts, you should see its real logo now, and the standard sources should be ready to use.

Today Apple announced that its annual WWDC conference will start with a keynote from Steve Jobs on Monday, June 7 at 10 a.m. Pacific Time. It is rumored that Apple CEO will finally introduce iPhone 4G.

The company has also revealed that the conference will include hands-on working labs for iPhone OS 4, Mac OS X core technology labs and the iPad development sessions. The event will be divided into five key technology tracks:

• Developer Tools
• Graphics & Media
• Internet & Web
• Application Framework
• Core OS

The company’s engineers will focus on iPhone OS 4 and conduct more than one hundred solutions-oriented sessions and labs, so it may be possible that Mac OS X 10.7 won’t be previewed.

The tickets on the WWDC had been already sold, though they increased from $1,259 to $1,599.

As we wrote before, new iPhone OS 4.0 beta 4 had been released today by Apple and here are some other features found today by 9to5mac:
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