The BETA licensing issue was an accident... It was a year typo in 1.5... All the BETA's are set to expire generally after 4 months of release. This is just to one BETA test the licensing system and also to get people to download the new BETA's so they can be tested...
I have stated that all registered BETA testers on my site will be emailed a discount code once the commercial version has been released.
Centrafuse already has some multiple monitor support and more will be added..
Hope this helps,