With UP4 LMDE will have Gnome Shell available. In addition there's Cinnamon for those who do not like Gnome Shell. Personally I like Gnome Shell a lot and have been waiting patiently for UP4 instead of jumping to a Gnome Shell based distro or point directly to Debian. I now wonder how much effort will go into working on Gnome Shell giving it that little Mint-extra that made me choose Linux Mint in the first place. Right now I'm testing UP4 and Mint Update resides in the hidden "systray" bar on the bottom named "mintUpdate.py", and not in the top bar where it naturally would belong in Gnome Shell. There's no unifued Mint look to the DE either at this point. I know that UP4 currently is in testing, so I'm hoping that Gnome Shell will get "Mintified" before UP4 is released for the masses. All in all, I would really like to know where LMDE is headed as far as desktop environment(s) go.