This is not another pointless topic saying "Oh! THis guy figured out how to browse the internet on the PSP!" No. This tells you how to actually do it. First of all I take little credit for this. The IP I give you is the IP to his website. Not mine in any way. It is very simple. First of all: You must own Wipeout Pure.
On you main menu of the PSP unit go into your Network settings. Once you find your network and stuff you should eventually get to the DNS setup. Merely set your Primary DNS server to 67.171.70.72. Go to the Download section on wipeout. Voila! You'll see his website. From there you can do just about anything. Flash will not work, and will dramatically slow down the loading. Most Java does work, I got into a JavaChat and started chatting; although it takes forever to type using the PSP's virtual Keyboard (API I think its called). To move around and highlight things you just merely hit the down, up, left, or right buttons. Once you have a text box highlighted, hit X and the PSP's virtual keyboard will pop up. Logitech is releasing a USB mini-keyboard that will mount on the bottom of the unit. It is due out next month. The browser will load almost all images (.GIF, .JPG, .PNG etc.)
Here is a link to his website which explains this how he did it:
http://www.base2.org/~fugimax/weblog/
Here is a more is a more descriptive guide I put together:
1. Goto Settings ---> Network Settings ---> Infrastructure Mode ---> Edit your connection you already had or create a whole new one.
2. Then setup the SSID and WEP (if you use WEP encryption) in Address Settings select Custom. Then IP address setting will come up, select Automatic.
The next screen will display DNS settings. Select custom.
Set the Primary DNS to 67.171.70.72 (this is what will let you get online browsing).
Optional: Set the secondary DNS to your router's IP (this will supposedly allow you to continue browsing even if his server goes offline).
3. Set Proxy Server as Do Not Use if you are not using one.
4. Confirm the setting list and Save the settings.
5. Put in Wipeout Pure and go to the Downloads section. When it asks what connection to use select the connection you just set up and viola, your online!
You can navigate the pages using the D-pad and select links with the X button. L will take you back to the last page you were on and R will take you to the next page. You can also enter text into text boxes by highlighting the box and pressing X.
Pages take a while to load, most likely because: 1) Wipeout is not really made for web browsing. 2) We're going through his website. 3) Most pages contain Flash, which the PSP does not support. The PSP attempts to load the Flash and thus it takes much longer. Pages with just basic PHP, Font, and Java and not a whole lot of pictures don't take quite so long.