Im making a thread for maylong m-150 tablet rom info im going to start it off with a link to a great site that has a few roms.
Maylong M-150 Universe Tablet PC
Actually, I'm not a developer - but I did stay at a Holiday Inn Express once.
Here is some info on maylong m150 from my reaserch
There is no 2.1 rom can't use 2gig micro sd cards and it does not like san disk cards
Also when rooting unzip the rom it does not do zip updates.
Rom all of them