Barney has a mac build of the latest coolviewer. He says that this one allows building above the 768M line. I will test it today. If so, it would mean that the open source community has shipped a key feature before LL's 1.20 release. (Henri's base build is here, and links are at the top of the Seconds Away list.)
I'm hoping the Henri, Barney and the gang, as well as the Godfather of open source clients, Nicholaz who got this one going with his first round of patches to 1.19, have done it.
Remember if you have a patched client, it is best to go back to the official base release, it is also best if you clear cache before logging out to patch the viewer. and I would advise keeping your current patched viewer in case a new patch does not work for you.
[Barney says the map fix was missed, but will be done soon. So I get to smile and be the first kid on the block with a full patch, because I've got the skin files that fix it on my machine...]
[Barney says the patch is in... so it is time to test...]