apple really is a toy company

I rember very long ago we had a very similar game on DOS.

http://www.macrumors.com/

Trism is a puzzle game, requiring the player to align the the triangles
together in three or more consecutive triangles of the same color. Rows of
triangles may be moved with the use of the touch screen, and grouped
triangles will disappear. The remainder of the triangles will fall into the
open space left. The direction of the fall depends on the vertical
orientation of the iPhone at the time the triangles disappear.


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