Hi Ico,
Regarding the VST licensing problem, I note a new version of the SDK,
for VST 3, is due out in the second quarter of 2007:
http://knowledgebase.steinberg.de/147_1.html
We don't want to get into a situation where only VST 2.4 is available
for free software developers to distribute, and the free software tools
go rapidly out of date after VST 3 is launched.
Cheers!
Daniel