The less likely theory, but the one that is more interesting to us is that Google might be "a floating marketing center" for Google Glass. KPIX says that a source close to the project has said that is the plan, but Google hasn't been granted the necessary permits for such a facility. There has been more chatter about Google Glass recently, because we are getting closer to the expected consumer release next year.
Google building a barge in San Fran Bay, is it a Glass store?
Google has been known to undertake some strange and mysterious projects before, but the latest rumors are getting a bit farther out there than normal. Recently, a barge has appeared moored to Treasure Island in San Francisco Bay, and work has it that Google is involved with building the structure that has been growing on that barge.