Hey,
I'm not sure what it is exactly, but if it's anything like any other web acceleration system, it won't help gaming.
This dial-up increased speed is mostly created by a cache engine. The ISP saves all the sites that any of its members go to so that if a member goes to a page, the ISP just sends the page right back to them, without having to go over the internet to receive the page.
If you find out otherwise, let me know!