Its 10 configurable keys are still a joy to use as an application launcher, and being able to customize the display of each individual key is a geeky pleasure of the rarest kind -- but that consistency means the pad's shortcomings are the same, too.
Presumably, users could customize the iWatch to display or alert on a limited number of items they care most about, because the iPhone or iPad would be close by with the full offering.
Players will have seemingly endless ways to customize the keyboard to illuminate key bindings or display health bars, even use it as a hit indicator in RPGs or shooters.