Dilema

[Tony Burrows]

Let's say you do GPL it, but then sell for lots of money.

A company that buys it could distribute it for free, or themselves charge.  
So you refuse to sell upgrades to them, they lose the competetive edge over 
other companies, they run into trouble as a result.

I would think most companies would not take such a short term view.  Of 
course, a rival could buy a copy and improve it, but theirs would have to be 
GPLed as well.

Tony