Seriously exciting for us Web Designers this is! We're starting to see a good variation of ways to implement fonts into our pages without using fricken cuFON which is totally awesome in my eyes. I've been using typekit for a while, the price is a bargain for what you get and i'll continue to use that service for as long as it lasts to be honest. I think it's great that these people are getting their heads together to push this stuff. Love it!