Flick
A flick is a single finger down moved rapidly in any direction and ends with the finger lifted up off the screen. A flick can follow a pan gesture.
UX_Interactions_Flick
A flick gesture moves content from one area to another area. The controls or the app can be configured to support specific flicking directional behavior. This can be horizontal, vertical, or another specified direction. If horizontal or vertical paths are specified, movements in other directions will be converted into vertical or horizontal movement.
Flick moves the whole canvas, but you can specify individual objects to be moved instead.
Pinch and stretch
A pinch and stretch is two fingers down within separate bounded areas followed by the fingers moving closer together (pinch) or further apart (stretch).
UX_Interactions_PinchAndStretch
Pinch and Stretch
Pinch and stretch provides continuous zoom on content with the center of the zoom located at the center of the two fingers.
Touch and hold
Touch and hold is a single finger down within a bounded area for a defined period of time. The touch and hold gesture should generally be used to display a context menu or options page for an item.
UX_Interactions_TouchAndHold
Touch and Hold
Four touch points
Windows Phone supports four simultaneous user touch input points to enable unique app interactions. Simple examples would be games or musical instrument apps.
Screen touches 7 mm or larger in diameter are treated as unique touches when the edges of the touch are separated by 3.5 mm or more, and all gestures are supported.
Every touch point also adds additional processor load, so if you’re implementing more than two simultaneous touch input points, be aware of potential performance impacts. While Windows Phone supports up to 10 touch points, not all hardware screens will support more than four touch points.