Davey,
YOU ARE NOT ALONE!
I'm in your club too. I have given my iPhone to my 12 year old son as it fits his requirements. Even as a personal phone it wasn't 'doing it' for me and I switched right back to WM. As a business tool, it's a joke. WM leads the way still and you'll have to crowbar my WM business phone out of my cold, dead hands!
WM as an interface is not great but it is getting better, HTC have made efforts as have Spb with the release of the wonderful Mobile Shell 3 but until/unless MS get WM7 sorted and this level of interface deep into the underlying OS we may still suffer funny looks from iPhone users. However, when it comes to actually achieving anything my WM phone leaves them for dead whilst they are still fiddling with the on-screen keyboard and lack of access to storage and functions.
Do not give up hope just yet!