And cellGcmSetZcullStatsEnable is probably the only thing keeping Disgaea 4 and D2 from running. The thing is, like AlexAltea said, the gcm stuff requires some pretty firm knowledge of how PS3 graphics works, and probably graphics in general. I don't think many people have the required know-how. Maybe DH or someone could do it, but they seem busy with other very important tasks.
tl;dr, give it time, someone will do it, eventually.
And another thing: Although random gcm commands and such may prevent a few games from going further right now, far bigger things prevent like 80 % of all games from even being loadable. That is probably more important, and maybe necessary even for most of the loadable games at some point. For example the event flag stuff that Nekotekina is working on now. It made Atelier Escha & Logy Alchemists of the Dusk Sky go from nothing to a white gsframe
tl;dr, give it time, someone will do it, eventually.
And another thing: Although random gcm commands and such may prevent a few games from going further right now, far bigger things prevent like 80 % of all games from even being loadable. That is probably more important, and maybe necessary even for most of the loadable games at some point. For example the event flag stuff that Nekotekina is working on now. It made Atelier Escha & Logy Alchemists of the Dusk Sky go from nothing to a white gsframe
Asus N55SF, i7-2670QM (~2,8 ghz under typical load), GeForce GT 555M (only OpenGL)