Google - New servers? +1 and recent changes

Hi there!

Did you all noticed the "new google interface", who have +1 and another changes? But, did you are facing what I'm facing:

- IE / Firefox and Chrome - each browser has SERP changes. Maybe a cluster of Google servers are allocated for each type of browser? I can say that because some of my keywords are ranking different on the same time for different browsers;

- Already implemented +1 on my sites and voted by myself. My pages are ranking better when I'm logged in on google account, but never better than #4 when I'm lower than that. If I'm on top #4 I can't feel no changes at all;

- Just tested: I'm in a foreign country. My results on local google differ when I use a proxy from US. Even searching in my language/Local google. I guess this is happen: think about your backlinks as a backlink net's. Google are ranking SERP's based on your IP location and backlink net's IP locations. Is this happening before or am I weird?

Just me or you too are seeing this?

My sites have been bouncing all over the last few days. I even had the page rank of one site go form 3 to 4 all of a sudden.

Yup, I noticed that, and I kinda seem to like the interface.,

- By SERP, you mean the pages, or positions? Because if it's the latter, then it's just you. For me, all browsers, and OS's (Mac and Windows) show the same search positions. Maybe you are logged into your Google account from a browser, that might be changing the SERP.

- Read this: http://searchengineland.com/google-ramps-up-personalized-search-10430

- Local and Global ranks always vary, due to the user's geo-location preference.