More infos would be nice, which Pandora model, 600 or 1GHz, how many FPS etc.... "works very well" sounds for me more like "does not work well on a CC Pandora with 256MB RAM and 600MHz...
However, Epic Citadel now also works on normal Browsers, at least on PC's:
Hmm 15 FPS at normal GPU speed (which is the bottleneck I think). Interessting. Half resolution (400x240), overclocked gpu and lowest details may work for games on this engine.
I like the Unreal engine since Unreal 1. Very polished and optimized Engine, should run much much better than 15FPS standard. I remember I#ve played Unreal 1 fluidly on my Pentium II PC @266MHz. It's a shame that Unreal 1 is not open source, maybe it could run as great as Quake 3 on the Pandora.