I just finished putting this together, 12 levels - some hackerish, some more puzzleish, but quite a lot of technical knowledge I think is needed. Upon completion of level 12 you can add yourself to the hall of fame, which only one person has managed to do so far, so 2nd place is up for grabs!

I know this is a bit lame, but its something to do I guess, and Id like to see it actually get some trafffic.