I remember seeing this on TMP, but I wasn't interested since sci-fi wasn't included and a 22 buck PDF is a bit much for an unknown game. I'll keep an eye on this now though.
If you're looking for some fast-play necromunda style action, I'd check out Neutron York. I just bought it a couple days ago and It's one of those rare rulesets that I actually feel that I understand before playing! Looks to be a bit more cruchy than Song of Blades, but not by much. I really like the opposed
D6 mechanism that they use, and at 7 bucks, it's not much of a risk...
http://ny3k.blogspot.com/