Past history would suggest most, if not all, future software upgrades will be free. I do recall the Empeg guys making some mention of the possibility that software upgrades employing the licensing of new technology (for which Empeg must pay a licensing fee) might be "shared" with customers in the form of an upgrade fee.

This is only fair--don't you think?

Krampster
Mark 1: #354 10 gig/green
Mark 2: #155 36 gig/red