Just some thoughts..
Quoted from openpinballproj:1. I don't mind rolling it into the project. At one point somebody tried to send me an all in one layout in Eagle. I couldn't throw that in the repository because my reading of the Eagle license says that selling boards at cost would be illegal. That is why Eagle is a no go for any open source project in my opinion. (Kicad has no such restrictions).
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Quoted from openpinballproj:3. It would be a pain to move the repository again, and I would want to guarantee that the history is not lost. I'm not sure if github could do that. Currently most of my work is in github, but I'm one of those people that likes the subversion work flow much better. I could go into a 20 page rant about it, but I'll simply say I like subversion better.
IMHO, Subversion is good for when you do not have a lot of people working on the same code at the same time. Nor, have a lot of different 'branches'. Because subversion doesn't have individual merging of other branches/checkins, once you branch off (i.e. v30_HWAddition), and make changes, and the original branch is changed, merging the two back together is a headache.
There are ways to get the whole history and branches and such from SVN to GIT; my office is actually in the process of doing this right now.
