See [link|http://www.hiit.fi/u/valimaki/dual_licensing.pdf|http://www.hiit.fi/u...ual_licensing.pdf] for discussion of other companies that have tried to do the same, generally with qualified success.

For further discussion see these threads on the Free Software Business list...

[link|http://www.crynwr.com/cgi-bin/ezmlm-cgi?sss:8461:200212:pjnfcbpnlghipgljcbfp|http://www.crynwr.co...fcbpnlghipgljcbfp]
[link|http://www.crynwr.com/cgi-bin/ezmlm-cgi?sss:8440:200212:cfenhlhhjdpkhjdpladg|http://www.crynwr.co...nhlhhjdpkhjdpladg]

Cheers,
Ben