As someone who ends up following this thread from time to time and kinda hooked on the mini velo thing, it seems like it may take a while but they bring back the Nano's again eventually. It's a pretty good buy if you want to get something to play around with.

Another option is the Java Limited CL. I have an older version of that bike that I got on ebay that was lightly used a couple years ago. I don't love the geometry of it but after seeing what a new one online was (around $500) I figured I would give it another try. I do love having the option to put some fat tires on it which is the way its set up now.