The new manilla from the rhodium does that already. if you don't want to upgrade then i don't know of anyway, but tf3d2 does that automatically without any extra programs or downloads. I have attached a link to the thread but you need to have a custom rom with a build of 21xxx before all of the updates will work properly. since alot of people like the stock rom, I have also attached a link to a custom stock rom with a build of 21028.
http://forum.xda-developers.com/showthread.php?t=493531
http://forum.ppcgeeks.com/showthread.php?t=61966