Great to see this thread still generating interest. Akira still needs to write his Sharp x68000 review. Perhaps if we find that darn tetris game he's been chasing, he'll make a come back to EAB and hold true to his promise.
Like I outlined in the opening post, the Arch was so close to being a perfect computer - all it was missing were those dedicated video chips like found in the Amiga, consoles and x68000. Not having a blitter was a real shame.