Sorry for the delay, wrote back a while ago but I guess it didn't post (cellular, pfft.)
Went for the Nexus v4 rom, which is running great so far. Thanks again for such a brilliantly simple unlock utility! :cool:
Other than that, since you seem to have fastboot working, you can use
fastboot -i 0x1949 oem idme ?
to see if your device is unlocked (see here for a list of commands).
C:\>fastboot -i 0x1949 oem idme ?
(bootloader) board_id: 0c0400
Puttytel reported an 'error reading from serial device', but after it had initiated device shutdown so just a gui annoyance (I'm on windows, so commonplace.) It seemed to work, but I haven't verified yet..
> fastboot -i 0x1949 oem device-info
I'm also annoyed by this, and will post back if I find the answer first. ;)