Hey Kelvin,I really haven't given it much attention.
My initial reaction is that it's one more way to diversify SERPs for individuals, like geotargeting, etc.
This means, we'll have more and more different versions of "top 10s". If I do a particular search, I'll see a-b-c, whereas Kelvin will see x-y-z.
It reminds me of boxing. A while back, there was one heavyweight champ. Now, there's about 6 of them. Same with #1 rankings. A while back, there was one site that was #1. Now, there can be different #1 sites, depending on things like where you are searching from.
IMO, this means it will be easier to get high rankings (for someone), but the traffic will be divided by the varrious sites that rank highly.
I don't think our Bomber strategy will change much, if at all.
-Boom boom boom boom.