I have the iOS5 gm on my phone now, very impressed so far. There is a new app called reminder which is pretty fun, and it takes the heavy load off of the calender app. The great thing is it can do location aware reminders (with out the need for siri assistant, yay!). It seems just as snappy on my 4 as it did this morning. So many little changes, I havent found a lot of them yet, and cant even explore iCloud yet untill the 12th. The plus volume button becomes a shutter button in camera mode, you have to wonder why they didnt do that before. You can actually use your phone whilst syncing now (again, why couldnt I do this before?). Everything is slightly shinier than before, text bubbles look great for instance. In fact it seems quicker than it did this morning, and 1gb has been freed up, not sure where that went. Just waiting for some notifications so I can have a look at notification centre.
Havent seen much not to like, iPod is renamed Music for some reason, and Video has a seperate app, a small gripe.