Tidalis UpdateChris Park sent this along, and if you haven't tried the game yet, go here:
Tidalis Official 1.005 Released (First Free DLC and Bugfixes)
This official release includes a lot of new stuff for players to enjoy, a lot of it suggested by fans. It adds the new VS - Race multiplayer ruleset for use against the AI or against other players, as well as a new Boarded Up block type. It has a lot more flexibility in what fullscreen resolutions players can use, even if their graphics card/OS doesn't report a resolution that they want to use as being supported. There is also a revamped sound subsystem that lets the game load faster, play multiple copies of the same sound effect at once (which sounds much better), and which avoids some issues on OSX.
Also included are 12 new Brainteaser levels created by players, a new visual block style created by a player, and updated stream graphics that look a bit fancier. Music tracks also now fade in when starting, which is a noticeable aural improvement. Aside from the above, this release has a number of bugfixes and other, more minor player-suggested tweaks.
All in all, an exciting first bit of free DLC, both with Arcen-created content and community-created content.