Firefox for Android pre-release available for download
Firefox for Android is now available as a pre-release download from the Android Forum. Although this build is not feature complete, it has the basic bookmarks and some add-on support. The Firefox available is for the Droid and does not run on all handsets equally well. The application is available as GeckoApp.
If you want to check out the looks and feel without actually installing the latest Firefox, see this Youtube video.