New iOS 5 Looks great i cant wait to get it onto my iphone4 and ipad2
new things in ios5
Notification Center
iMessage
Newsstand
Reminders
Twitter
Camera
Photos
Safari
PC Free
Mail
Calendar
Game Center
Wi-Fi Sync
Multitasking Gestures for iPad
Accessibility
too read more about this Click here
also there is new thing called iCloud to read more about this click here
also techAU Did are great blog post about all this you can check it out Here
-brad