There are a few titles that work better in rice, I can't comment on the performance on the Pandora but compatibility should be similiar to rice on other devices. There is a texture issue only affecting PowerVR chipsets that I haven't been able to fix as I don't have a PowerVR device. I posted some ideas that might help track the problem down, it may just be a simple shader precsion issue.
There you go he's back you know your stuff and i know you can do it,i hope you get the rice plugin ready soon.
The plugins that mupen had weren't very great but they did the job,so what's the difference in the rice plugin,would it able to play more games or would it be the same.
Conkers Bad Fur Day - This is supported in rice but runs too slow on devices faster than the Pandora
Wipeout 64 - Menus work with rice whereas they don't seem to on gles2n64.
Yoshi's Story - This has some glitches but is playable. I assume gles2n64 has similar missing background issues on the Pandora?
I seem to recall some have commented that there are text problems in translated versions of Animal Crossing that are fixed in rice.
Paper Mario is a title I want to get working, currently the start of the game is ok but flickering happens shortly after.
There are probably some titles I've missed or don't know about.
Rice also supports high res texture replacement.
Stradian, be sure to copy all the cfg and ini files for the emu and plugins, the console printout above says missing rom database plus rice crashes without RiceVideoLinux.ini
Looking forward to seeing it run on the Pandora and interested at how it performs.