Brilliant app ... kudos! Very high quality although a bit odd to quit out of.

Even more spectacular though is the way to try out different levels. I was pleasantly surprised when I could just browse to the website http://numptyphysics.garage.maemo.org/levels/ and click "play" on the puzzle I wanted to try and it "just worked". "Save" was a little less optimal as it just displayed the source code of the level. But it is nice that it is a simple text file ... I just have to figure out where to save it to make it a permanent level.

Thanks!