I remember a homebrew program that was in development that made it possible to utilize the PSP's wifi signal to browse the web on, in this case, the laptop.
I believe it was being developed by one of the prominent supporters (creator?) of the USBHOST/NETHOST deal, around the time iRShell/devhook became popular with the idea of running ISO's through USB. I don't think the homebrew was released, and it was still experimental but it was said to work decently.
I still remember a picture with the black USBHOST/NETHOST console box up on a laptop screen, with a USB cable connected to the PSP which was running a homebrew program (basic black background with white text look, a bit like the recovery screen).
The creator of this program made a thread outside of this forum. For some reason I'm thinking inside the Neoflash forums or some other competitive homebrew forum. This would be a probably a year and a half+ ago.
I searched Google and couldn't find anything. I'm pretty sure I wasn't imagining this as I was excited at the prospect that I would be able to use my old laptop to browse the web using this method. Like I said, this homebrew was still in development and there were no releases for it, just technical aspects and pictures from (if I remember correctly), a known developer in the PSP community.
Thanks for reading!