Make the bootloader able to reenumerate.  Yank EEPROM programming, lock bit programming and fuse programming features to fit into the 4K flash.  Mad props to the AVRFreaks folks for helping me a ton at http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=140088&start=all&postdays=0&postorder=asc