Another interesting but totally disappointing news from Apple, iPhone OS 4. Yes, they've manage to incorporate multitasking to this new OS in a way that won't drain battery BUT this new feature is only for iPhone 3GS and iPod touch 3rd gen. For the rest of us who's still using the older versions of iPhones & iPod touches, we remain restricted in running one app at a time, although the new OS has lots more in store. Steve Jobs reasoned that it is basically the hardware of these older devices t...