Wow, am I off or what!
The reason I sent this is that I got an email from them today announcing "the news". :)

I don't own it myself but I tried the demo and it flows very nice. It's easy to use and the basic principle is so easy it's genius.

There's even a free little similar tool called SMLuminance out there available at http://www.endor.demon.co.uk/ but I'm sure you knew that.

Best/Tommy