Tap a Gap will have you tapping gaps on the 4th of March...
... and this preview video will show you how to do exactly that
In Tap a Gap you need to tap the lane in which gaps begin to appear in an otherwise whole circular object. This then removes a layer of the object, stopping it from reaching the outer ring that indicates game over.
It's pleasingly minimal, but deeper than first appearances would have you believe.
Tap a Gap comes to iPhone and iPad as a universal app on the 4th March, it'll cost you $1.99 / £1.49 at launch.