Well I guess most of you guys tried out the coming OS 4.0 beta. Current beta version : OS 4.0 Beta 4 Share some of your thoughts on the new coming OS! Well I tried out the iPhone OS 4.0 Beta 4 on iPhone 3GS, the multitasking look cool, I guess currently only the default application (appstore, settings, etc) just support the multitasking, 3rd-party application seem haven't update it, so.. multitasking still not work. Tried out when playing SF4 tried to switch to SMS, then when switch back again, the whole SF4 application restart, lol. application switching animation was great, very smooth. The transition from lock screen to homescreen seem better than previous OS as well, smoother than before. However, when we sliding through page to page on the home screen, the transition worse than previous OS, no longer smooth like before, bit lag. Hope apple would fix this when stable release. Homescreen wallpaper.. just too awesome, very very cool.. Also.. quite frustrating unable to backup my iPhone under OS 4.0 through windows (I use VMWare OSX 10.6.1 to upgrade 4.0 Beta), and often appear some error when sync my iPhone. Overall, quite great with new OS, can't wait for official release! So.. what's yours experiences and thoughts on OS 4.0 beta?