here are my initial impressions on my ipad 2
positives
very impressive that my apps are all available through the cloud and not having to go to my pc to sync.
multiguestures - i had these already unlocked but they are freaking quick! they must of added a line of code for turbo boost.
overall feel is snappier - again it seems like this OS is faster.
browser tabs - yes there were other apps that did this but now everything works under safari.
reader - it's nice to have a clean look when reading.
Negatives so far
notifications - not working for me
hard reset - sometimes my ipad 2 just doesnt turn back on so i need to do a hard reset.
email - no improvements
messenger - well no fault of apple but there isn't anyone i know i can message.
anyways it's cool and ya it's beta