FourSquare is a rapidly growing social networking application for Windows Phone 7 that precedes Google Buzz. The app was recently demo’d at the MIX10 (an assembly Microsoft developers, designers and geeks).
While FourSquare is already released for Windows Mobile 6.x, the new version for WP7S has impressed developers because “it just works”. FourSquare has the highest growth rate for any social networking application to date.

More leaked screen shot photos of Windows Mobile 7.

Here are some screenshot mock-ups of Windows Mobile 7 that Microsoft uses internally (probably by the graphic/design team). Windows Mobile 7 will have a slider-unlock feature! Ok, now we’re even with the iPhone.
You can immediately tell from the screen shots that Microsoft took a whole new approach to the user interface w/ WM7. But until we have a video of it in action, we can’t see how ‘fluid’ it really is. If there is any lag with the new UI, I’m off Windows Mobile forever. Lag is like getting into bad traffic: you’re upset that it’s there; and if it doesn’t go away soon, you’re going to honk your horn.

[thanks to wmexperts & pocketnow.com]