Hey Rich,
It's coming soon (we have beta testers stress-testing it & finding bugs for us now). We're releasing it for Windows first, then Linux, Mac, and Solaris will follow shortly after.
In the meantime there are a few things you can do. One way to get ghetto-floating licensing is to call Deactivate(0) on every close of your app and call Activate() everytime your app starts. This way you can create a product key that that allows N computers to run your app simultaneously. Obviously this is less than ideal, and not floating licensing, but some of our customers have had luck with that (while they wait for floating licensing).
Tell me your thoughts. Also, will Windows-only for the proper floating license server (TurboFloat) work for starters or are you delivering to multiple platforms at once?