1. download this, extract boot-new.img to your computer.
2. place your device into bootloader mode (BACK+POWER, or VOLUME DOWN+POWER)
3. fastboot boot boot-new.img
4. wait for device to boot
5. adb push boot-new.img /sdcard/boot-new.img
6. adb shell flash_image boot /sdcard/boot-new.img
your device now has root via adb shell.
i'm making the rooted recovery.img now for magic