Yup, the famous true-multitasking app Backgrounder has been updated (ver. svn.r504-1) and is now compatible with iPhone iOS 4. Backgrounder app allows you run multiple apps simultaneously in background like WLM, Skype and many more. The previous version (ver. svn.r492-1) was having some speed and SB crash issues on iOS 4 which are now fixed in the updated version.
You can download Backgrounder app from Cydia for free. Make sure you have BigBoss repository added in Cydia, usually BigBoss one of the default repositories and is added along with the Cydia installation on a jailbroken iPhone. If it is not present in your Cydia, you can add it by navigating to Cydia->Manage->Repositories and tap on BisBoss's Source to install the repository. Once BigBoss repository has been added, click on Search button at the bottom and search for "Backgrounder". Click "Backgrounder" in the found results and install it. Thats it!
After installation, you can integrate Backgrounder with Activator and assign a custom on-screen gesture to put any app run in background.Contact Us for News Tips, Corrections and Feedback