<blockquote>Using fMSX and the attached .dsk image of an ancient Speccy emulator for the MSX, it's entirely possible to run 48k BASIC at a half decent speed. Sadly, the emulator doesn't support snapshots and stuff, but it's nice to see the Spectrum BASIC prompt on the PSP screen...
Use the .dsk image I've made (zipped) as a normal MSX disk, in MSX2+ mode, then enter RUN "ROMU6.BAS" using the fMSX on screen keyboard (right trigger). And then wait about 5 seconds.</blockquote>