MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I've ordered parts to switch to a 0.25mm extruder tip, and I plan to explore just that. I'm thinking that with some more care modelling, 15 mm could look quite good.
The biggest issue is overhangs, you don't want to be trying to cut support material off all of those little men...