Convert PPSSPP save data to PSX?

[LunaMoo]

Well SI&II for psp is sold on auctions for sure, like amazon or ebay, if you just want to play better get an used copy, since psp release was commercial failure which always increases prices with time:|.

About VC ~ it's just not soo easy to start new series, so they likely couldn't afford releasing it on other stuff, it's always a huge financial risk. Maybe they could later, but someone probably decided it wouldn't sell enough to justify it. Kind of sad, but after all this is a bussiness ~ no place for sentiments.

Edit: you probably already saw it, but this wiki page has a list of changes in the psp version of SI&II.