To quote Adobe, they have partnered with Google Web Fonts Ã¢â‚¬Å“to identify which fonts will benefit the most from our attention, and how we can best approach improving their rendering and performance.Ã¢â‚¬Â Fonts from the Google Web Fonts library will now be available in the Edge Web Fonts library as well, and many fonts will be optimized to make them better (Adobe does know a thing or two about font optimization, by the way).
In other words, more open source font awesomeness for you and me! Adobe has already released two open-source fonts recently, namely, Source Sans Pro, and Source Code Pro. Check out the extensive list of 500 font families (!) here.