A new developer, Gamazura, has released a new Tetris gamepack with some nice graphics and nice backgrounds.

Description :

Thanks to its 8 skins with latest generation graphics, its 7 different
brick games offering innovating playing modes, B-Trix Deluxe will
become indispensable in your collection.

From now on, you can play with B-Trix, the new reference of the major
game on your Palm OS and enjoy high resolution graphics which serve the
gameplay!

More info can be found here and the game can be purchased for $16.95.