Spotted via Mike Blumenthal, it seems Google is having a hard time counting the number of reviews on a Google Maps listing.
One thread in the Google Business Help forum shows how this listing shows a summary and says there are 35 reviews. But if you add them up by counting all the reviews on the listing, you will count 62 reviews.
Why can't Google count them? Beats me.
It does appear to be an issue specific with the new Google Business Google+ local pages only.
Google has not confirmed or acknowledge any issues on the thread but no one should be surprised if Google Maps has issues, they always do.
Forum discussion at Google Business Help.
Update: Google posted they are aware of the issue and working on a fix. Jade Wang from Google wrote:
Letting you know that we're working on an issue with the review count not matching the actual # of reviews and also reversing some incorrect review takedowns. Thanks for your patience.