Version 2.2 has now been released. The main feature is some updated graphics (shading effects and updated quick access icons). The other "feature" is the ability to turn on iAds (it's turned off by default on the full version).

HOWEVER, there is currently a bug where the Settings button seemingly doesn't work when iAds is on. The reason is that the bottom row is reserved for ads and so doesn't respond to touch. If you tap the very top part of the settings button it should still work.

We will obviously fix this in the next version.