Thanks to PS2Lair for the info...
On February 15th, 2001, The Japan version of the Ethernet Adapter for the Playstation 2 was released. You simply hook it right in to the standard usb port on your ps2, there is also a cd that comes with it, on how to install and also with a built in web browser.
(Now all you need is the Hard Drive to download on to!)
The release date for North America (US & Canada) has no been set for sure yet, but there looking at the end of March 2001.
The Product is quite cheap, right now in Japan the price is: 2,500.00 JPY, which is appox, $21.60 USD. I find that a good price for the package. Anyone with a cable modem(or any RJ45 Internet Service Device) all around the world can access it, no extra internet charges or no setup fees.