Apple mentioned Force Touch during the unveiling demo, and there is a blurb in their documentation as well:
"Force Touch. A small screen can only accommodate so many controls. That’s why Apple Watch introduces an entirely new interaction model: Force Touch. As well as sensing touch, the Retina display also senses force. Force Touch interactions display the context menu (if any) associated with the current screen. Apps use this menu to display actions relevant to the current content." [1]
I've heard people compare this to a long press, but its subtlety different. Force touch can bring up a context menu faster, because you don't have to wait to determine if a touch is "long" or not
* Section 6-left, a heart drawn on the watch with the name Jamie.
"You don’t even have to use words. The Digital Touch features on Apple Watch give you fun, spontaneous ways to connect with other Apple Watch wearers, wrist to wrist."
* Below, a flower drawn on the watch with the name Eliza.
"Sketch. Use your finger to draw something quickly. Your friend on the other end can watch your drawing animate, then respond with a custom creation for you."
Hopefully is already there or else we might have to wait and see the touch API public for WWDC. Eager to play with it, if anybody has more information please share. Thanks!
I wonder what fully app for watch means though. I am intrigued on the touch event support. There is something new called Force Touch.