I wouldn't have tried this when I ran Rolemaster, but Pathfinder is close enough to the game most of us played at least a bit in the last 10 years that it hasn't been a problem thus far. There's been a lot of texting back and forth, and we've got some long email chains going. Miraculously, I think we even have our party:
-Human Bard (Archivist variant from the Advanced Player's Guide--that's me)
-Human Cleric-Human Oracle
It's a case of group chargen without being face-to-face. It feels like everyone is really excited and involved so far. Ideas are being bounced off, we're trying to get an idea for everyone's niches, and I was able to get some good feedback for my backstory. I'm definitely excited to be actually playing instead of GMing again, and everyone seems pretty content with the system being used.
I think we've also been helped by the online resources available. The Pathfinder Online Reference Document and Wiki have been excellent tools, and I know I'm not the only one using them. It's also nice to have the Paizo message boards for questions that might arise. Again, Paizo's fan-friendliness is a definite asset in deciding to use Pathfinder.