Google introduced a new feature in Gmail Labs today for video chat enhancement. If you turn the feature on, your video chat experience will come with higher resolution. 

Chances are, the feature will be automatic in the future. Google says by using it, you’ll be getting a preview before its turned on for everyone. 

"The higher resolution video uses a new playback mechanism which enables widescreen VGA and frees up valuable resources on your computer," says product manager Serge Lachapelle.  "For it to work, both you and the person you’re chatting with will need to have the lab turned on. Remember that you can always revert to standard video chat by disabling the lab."

Google says it plans to add additional video chat enhancements to the lab in the future. Having the lab turned on will mean getting those features first as well. 

The lab is simply called "Video chat enhancements". You can turn it on in the labs tab under settings in Gmail. 

The feature is also available in Orkut.