+This runs on:
+* ATmega32U4 ([PJRC Teensy 2.0](http://www.pjrc.com/teensy/))
+* AT90USB1286 ([PJRC Teensy++ 2.0](http://www.pjrc.com/teensy/))
+* AT90USB1287 ([Atmel USBKEY](http://www.atmel.com/tools/AT90USBKEY.aspx))
+* ATmega168P with using [V-USB](http://www.obdev.at/products/vusb/index.html)
+* ATmega328P with using [V-USB](http://www.obdev.at/products/vusb/index.html)
+* ATmega32U2
+* AT90USB1286, 646, 647 should work
+* AT90USB162 testing...
+
+NOTE: To enable full features of firmware you'll need 32KB flash size.