So, I Just got a 3GS, I Know iOS 5 will work and what not, but is there any features left out? Thanks (other than siri)
There are a few, mostly related to hardware limitations. Location-based reminders and Facetime are the only ones that come to mind immediately. (The 3GS uses an older GPS chipset that draws too much power to be effective with location-based reminders, and of course it's lacking the front camera for facetime).
My 3GS works great on iOS 5 but I did have to do a few hardware resets after the upgrade and sync. Battery life is better than 4.3.? which is a plus