I just checked the drawWindow API into trunk, so nightly builds and Deer Park will have it. Please test it out. I'm particularly interested in the results on the less popular platforms --- Mac, Linux on weird architectures, etc. I'm also interested in pages that render incorrectly via drawWindow. I know plugins won't work (except WMODE=transparent Flash should work) --- we can't fix that. File bugs on problems you find and CC me.