Posting from the iPhone (as I am now) requires me to switch to the code view. I’m guessing that there is a lot of work to existing applications to modify the javascript to work with this browser. As far as typing out an entire post, although it’s not too bad it’s not something I would choose to do unless I was away from a machine for a while. My typing is getting decently fast in the landscape mode, so I think that this is a feasible option when I’m out and about.