As Windows Mobile games go, BubbleWrap is good, simple fun, that can be played almost anywhere.
Mobile games don't usually lend themselves to amazing graphics, and BubbleWrap is no exception - the graphics featured here are fit for purpose, nothing more.
However the lack of sound is a surprise; requiring only three or four different "pops" this could easily have been added into the game without a major increase in system resources, and would be useful to detect bubbles that have been reinflated but are in the corners of the display area or under the players fingers.
Still, it's a minor complaint. BubbleWrap is fun, go get it!