The details are vague, but Typekit is a part of the Adobe Creative Cloud:

"Add real fonts to your website
Simplify the process of adding expressive typefaces to your website. Just choose the fonts you need from the Adobe Typekit® collection, without having to worry about browser compatibility or licensing details."

http://www.adobe.com/products/creativecloud/publish-anywhere.html

I wonder if the monthly Creative Cloud fee will include access to any of Typekit's paid plans.