Sorry if this is posted up inthe wrong section but wonder I anyone can answer my question.
Whilst out today I was checking my positions on Google on my iPhone..interestingly I had dropped in a few keyword searches! I then got home and checked again and they were as normal as if nothing had happened!
Is this normal? Does google use different data centres for mobile browsing?
It is common for results to be different for a mobile user - or for results to be customized by user agent altogether. In the thread Google Updates and SERP Changes - April 2010 [webmasterworld.com] there's been some conjecture that mobile may see changes in the results before other users - not yet confirmed.