Yep, We hit a wall when developing Awesomium-- long story short, the vision for Chromium long-term didn't match with our design goals so we announced to the community that we're starting over with something new (which turned out to be a minimal WebKit-port, eg. Ultralight).

From a business standpoint, we were offering paid commercial support for not just Awesomium but all the Chromium-related parts and that surface area had grown to be way too large to be maintainable. For the product to succeed we had to refocus efforts on building a solution we could fully own and met the requirements of our core market-- and that took about 6 years of R&D.