Saw this on XDA and had to try it. The one feature missing from the stock GB launcher.
Flashed after installing rc9, and all looks well.
Landscape capable AOSP gingerbread launcher for CM7 in Flashable zip - xda-developers
On landscape everything just scales rather than stretches, but pretty good anyway. Unless someone knows of a weather clock that has a seperate landscape mode like Sense 2.0.
Brent