I don't believe the pi has enough horsepower to adequately emulate an amiga without alot of dropped frames, skipping sound and so forth, but I could be wrong... If there was an optimized aros distro just for PI, it may be able to emulate classic apps without problems, but I'm not sure it would deal well with very demanding aga games and so on...
From extensive research I found WinUAE only needed Pentium III 600mhz for OCS/ECS and Superstardust AGA needed 850mhz. These were laptops running Win XP SP1 in 2007ish.
I'm not sure how fast the Pi is.
