Google Chrome browser is recently Launched, it seems, chrome will collect in turn about sites which user visits, what one does on sites and even more, what user explores on challenger Search Engines, distribution collected data to G server for an analysis. Read end user license agreement #11.1 - 'By submitting, posting or presenting the content you give Google a continuous, irretrievable, worldwide, royalty-free, and non-exclusive license to reproduce, adapt, modify, translate, publish, publicly execute, publicly display and allocate any Content which you submit, place of duty or present on or through, the Services.'. But Matt Cuts says it's ok.
One of the prettiest features in Google Chrome browser is V8, a fast JavaScript virtual machine, developed by Denmark programmers. Although Chrome's performance beats the current stable version of FF, benchmarks show that Mozilla's next-generation JavaScript engine actually outperforms V8.