I've not had time to download and play this but judging from the screenshots, the textures look too grey and muddy and the GUI needs refining.
The games pretty fun. Even from the first test-release of it, with horrible gui, I enjoyed it.
It's definitely coming along nicely Matty, I really enjoyed the first test, so this should be great. Also, it's going to remain completely free? You people scare me sometimes...