A Week With iOS 5: Put it this way: I’m home now and there’s not one task that cropped up during the week that I had to say “I’ll have to wait until I get back to my Mac to finish this”. That, to me, is the interesting bit.

[Indeed. If you have a chance, hook up a blutooth keyboard to your iPhone. It can be an eye opening experience to have a full sized keyboard attached to that device.]
Source: Fraser Speirs