http://sanfrancisco.bizjournals.com/sanfrancisco/stories/2008/09/15/daily74.html?ana=yfcpc

http://googleblog.blogspot.com/2008/09/changes-in-phoenix.html

From Google's blog post:

<<we've found that despite everyone's best efforts, the projects our engineers have been working on in Arizona have been, and remain, highly fragmented>>

What does this mean?

I believe it means they were working on little bits and pieces, not pulling anything together into a proper project/product

It reminds me something...
http://blogoscoped.com/archive/2008-07-03-n34.html