Correct. For small HDF files the PIC is fine, but if you use large HDF files then you'll notice a hell of a difference. I have the ARM controller that replaces the PIC and it is worth the extra money.
Yes. I have the ARM controller as well.
I ended up not doing much with my Minimig initially and then recently I started messing with it again when I got the new case and bluetooth adapter and buzzer. I'm really impressed with the latest core. I really want the new minimig.
When I initially configured it i don't believe it supported FAT32 or long filenames
I just had a bunch ADFs with 8 character filenames in the root of a 2GB FAT16 card. No wonder I did not do much with it.
Did you do the SPI Mod? If you do the SPI MOD (like I did) can you even use the PIC anymore without putting the resister back?