This game looks completely incredible! I'm dying to play it. The fact that it's already past its slated release quarter has me slightly nervous, but only slightly, since the game did win the grand prize at the Independent Games Festival, and there has been recent activity on its blog and forums, so I know there's support.
Aquaria
That does look really cool. Can't wait to play it myself. It looks like a Castleroid game though, but I can't complain as I really like the Castleroid format.
Yeah, I've been keeping an eye on that one, myself. Part castleroid exploration, part shooter? Doesn't get much better then that.
I saw someone describe it as "Metroid meets Ecco the Dolphin". I'm so excited!