My concern with Google+ is the same one I have with Android. Google commoditizing and monetizing my data. Monetizing the language I use in posts, the information and links I post, and all of my other interactions.

Twitter does the same yes. But when I push information to a personal blog, hosted on my own leased server space... I can "supposedly" control access by search engines... So if I chose, I could limit some access and caching within search engines.

Many wax poetically by the new openness. I'm not afraid of open. Encourage it in fact. But I'm not always prepared to give up my every idea and thought that I put out there to be used to target me with ads and build an e-profile that I have no control over.

Google is known for their "do no evil" motto. Time will tell.