Anyhow, the latest news is that, Google has released an extension for their Chrome web browser which basically enables the users start a remote desktop connection for free!. The extension is currently at its beta stage and is about 19MB in size (it was introduced like 2 days ago ="Oct 7, 2011", and used to be about 17MB in size but have added 2MB already, seems like they've done some "heavy" bug fixes already).
It's a cross-platform "thing" (obviously). So as long as you have installed Google Chrome web browser on MS Windows, Mac OSX, GNU/Linux or any platform the browser is installable, you should be able to start a remote desktop connection. The extension uses the Google G-Talk web API thus will ask you for your Google account access + at this point there seems to be no audio support but both video and text message sending is enabled by default.
As with other applications the remote desktop connection is implemented by using a access code (12 digits), encrypted. For instance, you can either generate a code for your computer and provide it to the user who wants to access your PC remotely or request their code and start the connection by yourself.
Either way, the code set-up is needed only once but if the connection got disconnected for some reason, then you'll have to enter a new code for security reasons. Since the basic foundation of Chrome OS is actually the web browser itself thus this will also be seamlessly implemented in the Chrome OS too.
So, if you want to do more than web browsing the Google Chrome and want to start both a nerdy or professional remote desktop connection for free then why not try this Chrome extension!.
Once installed you can access it by simply opening a new window and then under the sub heading "Apps" click on its icon as shown with below screenshot and can even access few of its settings window (creating a shortcut, etc) too.
You can also read this official help page for more information.