My previous post was too optimistic. There will be no telemetry in Firefox 6. Due to the multitude of reviews involved we slipped and are now aiming for Firefox 7. Bug 659396 tracks various ongoing telemetry tasks.
I updated my about:telemetry extension to work with Firefox 7 nightlies. Additionally, my friend, David, helped me apply some nasty CSS tricks to make the histograms look like histograms. I’m open to further CSS contributions. I haven’t listed the extension on AMO because we plan to have this functionality integrated into Firefox soon (hopefully 7).
Thanks to everybody who manually flipped the pref to turn on telemetry. Having early feedback on this feature is awesome.