It appears that some earnest user/developer of the Windows Mobile platform decided that new iPhone interface was slick enough to place on Windows Mobile and developed one.
If you're running phoneAlarm for Windows Mobile 5, you can download and install this skin for your phone.
More information and the download is available on the xda-developers.com site.
Like we said, iPhone is nothing new, just a pretty face.
UPDATE: On a related note, according to bit-tech.net, Steve Jobs has said no third party applications will run on the iPhone, so doing anything like this developer did would be impossible to do on the iPhone.
I think it's looks pretty close, what do you think?
UPDATE: It appears that Apple is a bit irked over this skin. In fact they have sent some cease and desist letters to bloggers who just posted a screen shot and link to the XDA forums. Of course this stinks of Apple trying to stop our First Amendment rights, since the bloggers are not hosting the original link.