Posted by Andrew.
Like most other browsers, Google Chrome can be fine-tuned by typing "about:command" to show information about version number, memory usage, cached files, plug-ins and more details. Here's the full list:
Here are some about: page screehshots from my Windows Vista:
Shows A list of all the web pages cached by Google Chrome.
Google Chrome prefetches the DNS records for 10 frequently visited hostnames. This feature can be disabled in Options > Under the Hood by unchecking "Use DNS pre-fetching to improve page load performance".
A list of histograms for Google Chrome's internal metrics
This is a Google Chrome's Easter egg. It embeds the 3D Pipes screensaver from Windows, so you'll see it only if you have the file sspipes.scr in C:WindowsSystem32.
Summary of memory used by currently active browsers and details of memory usage of each of Chrome's processes.
This page could be used for I/O tracking and it's a partial replacement for the Live HTTP Headers extension. Click on "Start I/O tracking", open a web page in a new tab and you'll get a list of all the images, scripts and objects loaded from that web page.
The list of plug-ins that are available in Google Chrome
A list of internal counters and timers that has a funny subtitle "Shhh! This page is secret!".
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/525.13 (KHTML, like Gecko) Chrome/0.2.149.27 Safari/525.13
Shows you some under-the-hood cache details
Shows the source code. it's same as right-clicking on a page and choosing "View page source".