All I know is we have three things:
1) A patent for the 'eyetrap' issued in 2003 with another 8 years or so to run.
2) A huge company with > $100B in the bank who has made a big publicity play betting on their technology that, on the surface clearly infringes.
3) No statements either from either party that a license is in place. In fact the Google Glass page should say "this device is covered by patents ..." but it doesn't.
If in fact no license exists, I see a table in the square with between 100M$ and a 1B$ sitting on it with nobody watching. I would not be surprised in the least that someone decided to try and take it off the table.
Time will tell.
Google doesn't have > $100B in the bank (citation: http://finance.yahoo.com/q/bs?s=goog+Balance+Sheet). You are probably thinking of Apple.
I continue to believe that Google is perceived to be a 'high value' target by offensive litigators.
I've been following his work for some years (decades) now, and while he is an "interesting" person, he has made many leaps in both design and tech involved, as well as testing.