David, So far my testing on your prior version worked decently on Lion (linked against Snowy built 9libs). Once this new version shows up in the source tree I'll be able to test a little more.
One issue I did not w/ acme: screen redraw is significantly slower than the Carbon version. Test by starting win in acme and doing something that creates a long listing (netstat, ps,...). Not a big issue as this can be fixed later. Thanks for the code. -jas