Just m.neogaf.com - it autodetects mobile devices - and even offers up a "pin to start" option for Win Phone 7. Just a lovely thing. Has multiquoting, prev page, last page, zoom to top/bottom - the old version used to get confused when you replied or quited and sometimes dump you into desktop, this is all like butter now.
Again, no search user history function that I can see (for my KyleJ obsessive compulsive disorder novel) but everything else is amazing.
Totally tips the balance for tablet devices too - no reason to use desktop gaf on those anymore and now the advertising works (unobtrusively) on mobile too. win win.