PSPRoxy allows a PC to go online using the PSP’s wifi, through USB.

Description:
1) User sets their Browser’s proxy to 127.0.0.1 and the port 10101
2) A LocalHost Server is started which redirects signals from the local port to the USB
3) The PSP APP picks up on the signals from USB and then tells the wifi to do as such
4) For Windows only

http://www.neoflash.com/forum/index.php/topic,4516.0.html