This may not seem like much, but this is HUGE news from WordPress.com:
Linking to your Google+ Profile creates an official connection between your WordPress.com content and your Google+ account. The benefit? It adds a layer of verification, confirming you are the author of your posts, and helps Google understand who created certain pages, which helps to increase the accuracy of search results.
In some cases, Google may also use this information to make your posts stand out more in search results by including your Google+ Profile information next to your listing.
via Your Blog, Plus One: Connect and Share on Google+ — Blog — WordPress.com.
Comment below if the significance escapes you…
Bright, shiny objects! 
Thanks for this – I didn’t receive any notification from WP. The more automatic outlets there are the wider the spread of your name/product. Great news.
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I didn’t get a notification either. It just showed up as an option…
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