Ok mates looks like the WIFI Nexus 7 is going to be sometime before you get OTA update.
If you feel up to it here is the best site to get it when available and find info about the firmware.
:- _http://forum.xda-developers.com/showthread.php?t=1745781
PS Just to say there are various bootloaders so you have to be careful if you want to flash it with the tool kit. Read up and ask there if in doubt.
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