I did try the steps in the link. I maybe a bit rusty with command prompt, but it did not recognize the commands. I noticed "-" between the words in the command line. Was I supposed to omit them? I also tried to hard reset my second n7 tablet, but it froze at the dGoogle splash as well. I'm not messing around with this one or I'd investigate the whole deal further..
In an answer to the posters about pattern lock, I didn't lock myself out of the tablet, my wife did. She saw the lock out message, but it said nothing about not being able to use pattern lock again, just that you have to wait 30 seconds before trying again.