We already have BYO Games, how much more useless could it be? (No offense really, I've played C::B-Tris for hours, mainly because I were without internet a few days with freshly formatted laptop with only C::B ;P By the way, it's pretty much impossible at level 9, because the blocks tend to move faster to the bottom than you can move them sideways. (my laptop actually slowed it down a bit, but on my main computer it's close to impossible :/) )
edit:
Oh, and about the useless plugins... I made a small RPG-plugin for foobar2k (audio player) (dont ask why, it just struct me as a perfect idea).