The "forgettables" (ie, things the mk2 forgot when accessory power went away and it did a self-powerdown) were fixed in 12a, yes. Pre release 12, these simply weren't being saved unless you yanked the unit out of the dash, as there was no early powerfail warning on the self-powerdown.
If you're seeing problems with things not getting saved (eg, position in song, etc) then please email us with all the info - on ac/dc power, how you powered down the unit (pulled out power plug, etc) so we can investigate. We've tried to get the unit to forget settings, but havn't managed it yet.
Hugo