Fellow Avanut David send the link to Point UI; it essentially is a small skin application for your Windows Mobile 5/6 and somewhat emulates the iPhone interface. Before you roll your eyes and think "here is another iPhone-knockoff-wanna-be", I'd suggest you take it for a spin. It is just bloody good!
The interface is just simple and you can use fingers (my fat fingers also worked!); to me it seems a less of the iPhone and more of a combination of the HTC Touch and the new upcoming Windows Mobile 6.1 and 7 (screenshots of v6.1 can be found here). Maybe Microsoft should hire these guys in the team.
Yes it is version 1 and has a few things missing but the community is quite active and a lot of good seems to be coming out. And the best part of it all – it is free.