To enable backgrounding for the currently-running instance of an application, press and hold the menu/home button until a message pops-up stating "Backgrounding Enabled". Note that only the current instance will be affected; if the application is terminated and relaunched, the new instance will not have backgrounding enabled.
To properly terminate an application instance that has backgrounding enabled, press and hold the menu/home button until a message pops-up stating "Backgrounding Disabled".
Application immediately quits when holding menu/home button:
One possible cause is having the Intelliscreen application installed with the "App Launch Boost" option enabled. This option can be disabled in Intelliscreen settings on the "Performance" page.
Application "XXX" runs fine in the background for a while, then suddenly quits:
This is most likely due to the device being low on available application memory (RAM, not disk space). This can be caused by either having too many applications running at the same time, or by using applications that require a lot of resources. Unfortunately there is no fix for this issue, other than to avoid having too many backgrounded applications.
Today the 400th package was added to Cydia 2.0 repository today. This number includes all kind of applications, modding themes, sound packages, winterboard themes, etc. Most of this stuff is free. All you need to use this is to jailbreak your iPhone.
One of the major announcements during last week's media event was the return of NBC shows to the iTunes Store. NBC reportedly accounted for 40% of iTunes video sales prior to their removal late last year.
Hollywood Reporter reveals that over 1 million NBC iTunes downloads have been logged since the studio's return on September 9th. Some of those downloads may have been free HD episodes which are currently available from iTunes.
A list of all free HD iTunes episodes provided by TUAW include: