Somehow "You must be nuts" isn`t enough to express the thoughts that hit me while reading this. Hey we are 2004 now, not 1994.
You say we need Amigas now.... well how long do you think the design of such a machine would take, my guess is 2-3 Years, if you have a hell of a lot of money to pay enough engineers.
The only thing I want to see (like most of the others) is a custom case.
Despite many hated it back then I think today the case of the Walker could be nice for the MicroA1, especially if you keep in mind that the MicroA1 is designed to work as a Point of sales/Information system.