GScroll allows you to swipe your finger left/right/up/down on the touch panel to scroll or navigate. This functionality will work in any Windows Mobile application that supports scrolling or navigation via the directional pad.
‘Tap & Tilt’ to Scroll

GScroll allows you to use your built in accelerometer to scroll or navigate any application. Simply double tap the center circle, and then begin tilting. To exit ‘Tap & Tilt’ mode, simply tap the touch panel.
Double-Tap Launch Zones Continue…

Here are few pics of touch diamond in white. I really like the white color. – via Dailymotion.se