>I don't see an issue. "On November 2, 2006, Microsoft and Novell announced a joint agreement whereby Microsoft agreed to not sue Novell’s customers for patent infringement.[10] According to Mono project leader Miguel de Icaza,[11] this agreement extends to Mono but only for Novell developers and customers." If you use Mono, are you not a Novell customer?

I hope not.

>
>>see http://en.wikipedia.org/wiki/Mono_(software)
>>
>>see the section on Mono and Microsoft’s patents