Last month, we looked at a collection of “action puzzlers” in iPhone Gems, so it’s no surprise that we’d to back to the proverbial Tetris well to see what’s new in this category. Today’s edition of iPhone Gems looks at three different Tetris clones, as well as some other titles that use grids as backdrops for action and/or strategic puzzle purposes. Skip straight to Cubes Lite and Tris for our best free picks…
