| Taking this into account and reading Eric Allman analysis
| (http://www.imc.org/ietf-mxcomp/mail-archive/msg03500.html), it
| seems the most common free software licence, the GPL, is
| incompatible with Microsoft licence on SenderID.
I didn't say that. I said that _some_ people may believe this, but
there is also some significant reason to believe that they are
incorrect, including statements from both Eben Moglen and Lawrence
Rosen, both of whom are lawyers. As near as I can tell, the question
of GPL compatibility is quite ambiguous at this time.
eric