1) Sprite bugs, 1 priviligied instructuin (not priv on A500)
2)
http://www.opencircuits.com/Minimig_Software_compatibility3) Kickstart is loaded just like any software from sd/mmc flashcard
4) ADF only
5) You load and unload disc ADF images from a builtin menu
6) The hardware is capable of this, but there's no implementation at this time
7) 1.5MB for fast/chip, 0.5M for kickstart

The behaviour of the FPGA can be upgraded by changing the contents of the flashcard. But some limits like 16-bit bus is dictated by the current design.