In the meantime, I've also added more G+ related widgets on this blog, including one that allows me to show thumbnails of people who have circled my personal account. Another button hopefully will encourage more people to circle my aforementioned Plus page.
During my "day job" researching I'd also noticed that, although the follower/circle counts weren't up to date, that the PPC spots were also starting to make mention of sponsor pages on Google+.
In an article "marriage of SEO and Social Media" (which likens this union to a predictable yet sudden elopement, to extend the metaphor), Matt Cutts's views on "social signals" continuing to grow in importance is quoted. One presumes that Google+ related cues such as +1s and other activities native to their environment would likely hold more weight than other SNSs, although perhaps there could be favoured emphasis on Twitter for breaking news.
If Facebook and Bing's integration evolves the way it has been implied, such as the 2012 August 30 announcement of the latter enabling searches of photos hosted in the former, Google would find it natural to mine Google+ data to enhance personalized results. Indeed, searching for my name on Google (in an incognito browser session) has started to yield my publicly uploaded photos to my Google+ accounts.
Speaking of social signals and Google, their Android OS received an influential vote of confidence from former Apple evangelist and current author of a free e-guide to Google+, +Guy Kawasaki. I'll be looking through this publication with interest and trying out more of the Google+ features.
In the meantime, I notice that I'm only prompted to share a new post via Google+ if immediately publishing. I'm hoping that time delayed G+ shares/posts (such as are available for Twitter) will become possible eventually.