On 9 Aug 2012, at 12:01, Rolf Langenhuijzen wrote:

Well, to me TM is money well spent, I'd renew my license any day.

I would as well. Open-Sourcing it is *incentive* to pay for it, not 
vice-versa. It's the best of both worlds: lots of eyes on the little 
nit-picky problems, but someone who can dedicate their time to 
maintaining the larger vision and direction of the project, vet the 
contributed code for quality, and make sure there are regular dependable 
releases.