I've created a working ClockworkMod recovery for Nexus 7 for use until such time as Koush releases his. This is basically the Galaxy Nexus recovery fixed up for the Nexus 7. Needs must and all that.
The r2 version is based on 18.104.22.168 (in case you don't like the new features in the 6 series)
The r3 version is based on ClockworkMod Touch 22.214.171.124.
Note: An official series 6 ClockworkMod recovery is now available from Koush / ROM Manager!
The recommended install method is 'adb reboot bootloader && fastboot flash recovery r3-recovery-clockwork-touch-126.96.36.199-nexus7-modaco.img && fastboot boot r3-recovery-clockwork-touch-188.8.131.52-nexus7-modaco.img'.
- r2 - DOWNLOAD (ROMraid) - MD5: 42ebef60c54ca4709e7fafb80933a80d
- r3 - DOWNLOAD (ROMraid) - MD5: a3e2326843a18447bd03b73318bee5c0