> Is it useful to continue to encourage MAMEUI, especially when QMC2 seems to be a > better, more generic (at least more portable) way to go? The cross-platform UI > apporach seems to be more interesting.
Yes it's useful for people who want to build MAMEUI. It's not like it is on mamedev.org.
If you want to use / build QMC2 then you are welcome to. Maybe you could do a write up like Mr. Do has done.