>It's because WP7 is an entirely different system. Everything was new.
>
>>My application goes back to WM 6.5. And as far as I understand this (from ver 7) the major differences occurred.

I just wondered we have a lot of applications written for WM 5, WM 6 handheld terminals. Will new handheld terminals use Windows Phone OS? Our applications will in MS Appstore? Actually it's not a bad idea. No bargain no tick... I don't know how at USA but this's a big problem at there... :)