For some reason Q Entertainment decided to port this game to PC, which is not necessarily a bad thing. The problem is their delivery method.
That company delivers *casual* game online (read - Flash). Even though Lumines actually plays like a Flash game on PC, I don't like it being actually marketed as one. Furthermore, people does not like Wild Tangent - it is accused of delivered spywares (this part is questionable however.)
Worth a try, still.