Sure, countless microcontroller development boards featuring a USB connection have made it to the Projects and Tutorials pages of Electroschematics. Although these days it really is easy to build your ...
A while back, [Rupert] wrote a blog post on using V-USB with the very small, 8-pin ATtiny85. Since then, the space of dev boards for 8-pin micros with USB has exploded, the most recent being ...