Don't know if this is something you'd be interested in, but I've been waiting for proper scaling in Picodrive since the GCW first came out. A lot of my favorite Genesis games were rendered at 8:7 and then scaled by the TV to 4:3, so those games (eg. Gemfire, Shining Force II, etc) look squished without scaling support. It's already built in to Picodrive for other versions like the GP2X, so presumably it shouldn't be terribly difficult to implement. It's just that no one has.
It is better to request new features for existing ports from the port maintainer, it is more likely to be actioned and it avoids duplication of work
Thanks for the reply. I did just ask about this in the thread from the last Picodrive release (which was way back in October 2013), but I saw this one and said, "Ah, what the heck." I had also been discussing this feature with pcercuei for months before that, so I guess my hopes aren't too terribly high, lol... It does look like hardware scaling has finally been implemented in the GCW itself, though, so if someone were to do this it would presumably be even simpler than before.
xXFrostXx, That's what several people were saying before, but I guess my favorite Genesis games aren't shared by everyone. Open up Gemfire or Shining Force II to see what I mean. I know there were several others as well.