Head over to SEO blog Sem-antic.com to read my guest post Optimising for Personal Search - it looks at Google's ongoing use of personal information in deciding the ranking of its search results, public opinion of whether that's useful (or even whether it's appropriate) and what it means for SEO.
Big thanks to James Rowland for letting me inflict my opinions on his blog! And if you have any thoughts, there's a comments box at the bottom of the post on Sem-antic.com where both James and I will see what you have to say, or comment below this post if there's something you want to say specifically to me.