Are you sure you mean Minimo?
From your description, I thought you were talking about Micro-B ,
which is actually a system bomb in its current state IMHO ,
or in other words, Micro-B renders the system to a unstable state,
where only reflashing will help.

Most of the problems I encountered with Minimo are more user-interface related.
Minimo doesn't autoconnect, it isn't really 'hildonized' so far (Fullscreen toggle), storing bookmarks doesn't work, there isn't a context menu for links ('open in Tab'), and those things...

Unfortunately, Minimo development for the Maemo platform seems to be dead.
Too bad. I'd even pay some money for a fully working and stable version of Minimo for my 770.

But then, I haven't heard of a new Micro-B version either so far...I don't know if I'd pay for Micro-B since I never saw a working version.
I had to reflash my 770 after deinstallation of Micro-B :-(