Man, the netbooks were amazing for their time, but even by 2008 standards, they were not powerful computers.
At the time you needed a fairly capable gaming PC for PS2 emulation, which is a far cry from the igpu in an atom. Given a PSP is basically a cut down PS2, I don’t think emulation on that calibre hardware is an achievable goal. An atom doesn’t even have a hardware programmable vertex shaders, on windows I don’t even think they had GL 2.1.
I never thought I’d see the day where an atom would be vintage tech, and people would still be rocking said vintage tech. It’s amazing you’ve kept it running and usable. Modern PCs can’t even keep up with modern OS, and you’re still rocking the good old days of single core single thread. Rock on!
I used to play GTA San Andreas on an n270 netbook, I believe at 1024x600. Didn’t run well, but was definitely playable.