Google Chromes Hidden Features

For me its very early to think about its performance and will take time to judge its performance and security issues while time goes on.
Lets look at Some hidden features in Google Chrome which are already available regarding about in firefox as about:config for better tuning of firefox.
Type these as it is in the address box of chrome and observe what happens,see the screen shots below.

* about:memory
* about:stats
* about:network
* about:histograms
* about:dns
* about:cache
* about:plugins
* about:version