Software that allows me to play games from my desktop on my laptop/netbook?

About 5 months ago, while researching netbooks/laptops, I found an article and website that, through an internet connection, you can play games from your desktop with their graphics on your netbook/laptop.

Now, it uses internet connection, and I really wanna try this out.

Ring any bells to anyone?

Thanks.

I really can't imagine this being very feasible...your lag would be tremendous.

Not really. As I suspected - the game itself is pretty laggy and has serious ghosting issues. This example is of Left 4 Dead, which is a pretty graphically-undemanding game. Then some pleasant ads pop up while gaming.

http://www.youtube.com/watch?v=a2SLE_Rl4jk

In other words, it's doable, but for the gaming experience you get from it, I'd rather just head to a more powerful computer.