CEZ Games Studio have finished their MSXdev'07 entry
BeTiled!, a puzzle game
already available for ZX Spectrum where you have to align crystals in rows or columns of at least three. It comes as a 48kB ROM file, requires 16kB of RAM and does support SCC/SCC+ cartridges (inserted in another slot). If you play the game on a MSX2 computer or higher you will enjoy additional effects and a special colour palette. A ROM label and instructions in TXT format are available as well.
*** update *** A new version has been uploaded!
Relevant link:
MSXdev website