Updated to latest build, everything is fine (to be read à la Homer Simpson: Mutlitouch... Aaaaah!!!), no loss of speed or functionality
I really like the new sliding transition between menus, unfortunately as usual there was screen corruption (this time no more purple, it is orange and I like it best ) upon first run (I didn't do anything particular before running liqbase, just opened microb, downloaded the .deb, installed it and closed everything I had active before running liqbase)