I ordered a HTC Trophy with Windows Phone 7.5 (Mango) today. It will be a (free) upgrade - along with paying for that 2 year contract and bigger data package.
I did a lot of reading on the Windows phone operating system, and this phone. Every consumer review I read was outstanding - 5 of 5 - and I read a lot of them.
Right now my current LG phone can not use aps, and only gets on the internet rather clumsily, as is the email program.
I will miss my real keyboard, but the choices for keyboard-equipped phones are quite limited, and the reviews of these phones are not that great.
So, hopefully, I can still learn and understand this new fangled Aps - I believe that W has only about 18,000 aps - about 17,990 too many for me