Within an hour or so after Asus released their bootloader unlocking tool for the Transformer Prime, devs had already released a custom ClockworkMod Recovery for it. It’s available now and will require a set of adb or fastboot commands in order to get it up and running. A flashable .zip version will be available shortly for those not comfortable doing it the manual way. Time for ROMs! Instructions at the source links.
Via: AndroidRoot, XDA