There's a lot of support for the iPhone, in fact one of the team seems to be slowly morphing his life around what the iPhone can do. (reading this, he insists the iphone is morphing its life around what he can do - but not too convincingly!)

In its basic state, I think there are some fundamental flaws using it for business. Some examples include - It won't let you share files with your computer - which makes it much harder to send out any serious work on a train. There're no arrows on the keyboard, which means you can't get right to the point where you need to edit. There's no directory structure to get straight to the files you need to find.

By themselves nothing to write the device off, but small niggles which cause annoying delays in the day. I've not tried one, but I imagine the blackberry might be a bit more business-friendly.

That said there are some brilliant applications, and the navigation has Apple's typical smoothness - even if it is a bit controlling.

With over 100,000 applications available, there is some fantastic invention going on. I thought this was really interesting use - iPhone special effects video . Although much of the good stuff is being done in the post-production edit suite, filming on iPhone is a pretty bold statement.