As it happens, I’m trying to get berkeliumworking with panda.
It’s similar to awesomium, except it’s open source, has a simpler interface and works with linux (awesomium for linux isn’t released yet, and if it ever is, it will be closed-license)
That said, it’s newer than awesomium and has had a little less work done on it, most notably I don’t think theres any javascript bindings yet, which is unfortunate.
I’ve never done any work in panda before, and don’t know much c++ so its going a little slow, but I’ve got it compiling, and interrogate appears to work, though I havn’t found the python output yet, so maybe things aren’t quite working yet.
If things go well, I’m planning to use berkelium for all gui elements in my game. Assuming something can be done about the lack of javascript access.