The freebies are getting better and better. Not sure how long this will last. To see app sales as they happen use http://www.appsnatcher.com/#m/appsale up right now: Badlands, Superbrothers, more. Other sites are much slower on the news.
What does everyone do to organize all the free apps? I gave up on organized app folders. There are just too many of them and too slow to move the app icons.
Gravity Guy is free again:
Gravity Guy: Free save $0.99
Gravity Guy HD: Free save $2.99
Frederic Resurrection-of-Music is free, looks like an interesting mix of music and game
Frederic - Resurrection of Music price history itunes
Frederic - Resurrection of Music HD version price history itunes
I'm playing it and likes it a lot. The "free" part seems like an extended demo. IAP for campaigns are a bit pricy but still cheaper than to Sid's PC titles. I'm not so sure about IAPs for aces and instant heals, that feels wrong somehow.