Apple released the iOS 4.3 update today for iPads, iPods, iPhones, so what difference does it make?
On the plus side, web browsing with Safari is much faster. The YouTube app finally behaves correctly (all during 4.2 it was way slower on the iPad than watching the same videos on my iMac). And for those who were annoyed by the change in the iPad side button from a rotation lock to a Mute button, now you can choose which you want.
On the minus side, still the “too much power” error when using the camera connection kit with peripherals like my Blue Yeti microphone.
(There are also beacoup new features for streaming and such, but these are the ones that affect me the most. There are several online lists of all the new stuff, like this one from Mashable.)