I've just posted about this over and the blog and thought I should share here too.

Mame has been ported to Flash.
( Even just writing that makes me giddy )

At present it doesn't have any sound support, but it's not exactly a deal breaker. There's a healthy clutch of games to go with it, and it's just sex really. There's no point me writing anything more, it's Mame and it's in Flash. It doesn't get any better.

http://yvern.com/fMAME/fMAME.html

Squize.