I'm not so sure about that. I have the power supply, but it still doesn't work. I think the rechargeable battery and needs to be replaced. It is not intended to be replaceable, but it probably wouldn't be too hard so long as it's not soldered to a board or anything.
But this has gotten pretty far off-topic, so back to the MacMini. There are rumors that the non-pro MacBooks will be updated sometime between today and November 6th. Do you suppose there's any chance that the MacMini will be updated also?
I doubt we'll see another Mini update this year, they did the nearly silent roll a few months back. That said, I hope they do update the line again sometime soon. I've got my iPhone credit burning a hole in my pocket, just waiting for a new Mini.