I look forward to going over the survey every year. I'm glad you find it useful.
I usually can't tolerate the white hat, towing the Google company policy line, buy our seo services, Google butt kissing talk most seo companies put out.
Many folks with all white hat only seo practices to their sites got disappeared from the search results or put back many pages during the last updates and filters Google has initiated.
I wouldn't think any changes that occur from +Local will be to much to handle.
There are suggestions that Google organic search results will go to a paid format like the paid for the blue local maps letter listings.
I am of the opinion Google search results are less relevant now to the searches I am doing than when I use Bing.
Another way, I am getting better search results using Bing than using Google when I search. Go figure. Try it yourself sometime.