Blend It!
Surprisingly addictive color-mixing based puzzle.
Been making my long bus travels feel really short
XG Blast, i wouldnt call it shovelware but it was buried under massive amounts of unknown games released same time.
It's a geometry-wars like shooter, but with a more hardcore oriented gameflow, with power ups, special bar, bosses and continues that takes you back to the beginning of the world in which you died.
Neves, another pleasant puzzler.
Diner Dash. Soooo fun
Commando Steel Disaster. Cheap Metal Slug ripoff that though not as good as the original, still brings fun.
Touchmaster series has some fun games in it.