There is only one question that needs to be asked when thinking about getting a phone.
Do you need it for work? Does it need to be able to sync with your work exchange server and let you know when you've got meetings or if you have recieved a new email as soon as it arrives??
If the answer is no to the above, do not under any circumstances get a Windows Mobile device !!!! I can't stress that enough. WiMo is utter crap !! (unless of course you like all the junk/issues associated with running a microsoft OS on your phone). I don't know about you but I want a phone that is small, light, has long battery life, (and no I don't consider 3-5 days a long life), can send and receive texts and is simple to navigate and use those functions and that's it and I can tell you now none of the Windows Mobile devices fit that bill. They are all, bar none, a windows OS first and a phone a very distant second, (and yes I include so called smartphones) , no matter how hard the likes of Samsung try to cover up the fact its WiMo underneath.
If you must have other junk like a camera, music player etc on your phone, (though heaven knows why they're all nothing more than gimmics), then there are plenty of models from the likes of Nokia, SonyEricsson etc to choose from. The iPhone looks alright, but I'd only get one if I really had to have an iPod, (which I already have so it would be pointless for me), as they are actually quite bulky/heavy phones with not very good battery life. Although I must admit I do really like the interface so it has to be the size it is I guess.