Using n900... I uninstalled my fennec 1.1 and went to the link to download and install firefox 4 beta. It also gave me the nonsense about it installing fennec 1.1, which is what I just uninstalled. It just finished installing. I can confirm that this is most definitely NOT an upgraded version that gets installed when you confirm that prompt. I suspect that the installed version from the repos interfers or somehow overrides the repo that the link tries to add to give you access to the newer version. Has anyone gotten firefox 4 beta installed?