Hmm, I tried AROS native on i386 on a Compaq Evo 2Ghz machine, and it was um, unusable to say the least.
Now, I KNOW it's not finished, and i KNOW theres huge chunks missing, but, the workbench kept freezing on me, and the windows stopped drawing icons, and sometimes it just went-away for about 5 mins, before actually responding to a mouse click.
This made even exploring the contents of the AROS cd a major hassle, so I didn't even try any other Amiga software.
I'm not against AROS, it's just too Alpha for me at the moment.
-Jar.