why though is it incase they have to change their whole thing and they wouldnt work?
The purpose of BETA and Gamma (and maybe some RC's) is to eliminate bugs, and by modifying the code, there is a harder chance of fixing bugs if any occur. That's why Kier asked for vB3 hacking to be allowed when RC1 is out (when there are little traces of bugs left)
I'll be releasing some of my forum hacks too... mostly admin ones... let's hope RC is not too different to Gamma - I had to spend some time porting stuff from Beta 7 to Gamma.