Bewenched - 7:49 am on Nov 6, 2012 (gmt 0)

Shouldn't and don't are two different things. It's been reported by some advocacy groups that Google Chrome does indeed send packets of data even though they publicly claim that it does not.

4.2 Google is constantly innovating in order to provide the best possible experience for its users. You acknowledge and agree that the form and nature of the Services which Google provides may change from time to time without prior notice to you.

[google.com...]

so they could legally switch on tracking and switch it off... their wording in the document is vague and wide open.