I think the same goes for any wearable tech. I find the idea of watch phones awesome, but all of them right now (like on aliexpress or Sony's smartwatch) are pretty tacky/nerdy. But with the right execution and design a watch phone could be an awesome way to avoid taking the phone out of your pocket for checking messages or snapping a pic real fast. A phone client rather than a full phone seems like the right way to go. Plus it's way less intrusive than a pair of glasses (not as fun as augmented reality though).

Edit: something like these would be amazing:

http://www.archiarcha.com/wp-content/uploads/2011/05/Samsung...

http://sumanl.com.np/wp-content/uploads/2010/11/Electronic-w...