From their announcement:
Here at Ganesha we are working hard to proofread “Flying Lead”, our set of modern skirmish rules based on the popular, award-winning “Song of Blades” engine. The pdf will be sold with two covers, one for those players who will use Flying Lead for “action movie” skirmishes, and the other for those of a more historical bent. The two covers can be previewed on our website.
The ruleset will be available soon. Watch this space.