PSP-HTTPD is an extremely portable web server that runs off just your PSP's Wi-Fi capabilities, in Infrastructure mode. When you start it up, it will connect to the Wi-Fi router and then your PSP will be accessible by any other Internet-capable device on your network. This means that you can wirelessly browse the files on your PSP using your computer, cell phone, PDA, or even a second web browser-enabled PSP! If you're really short on computers, you can open up your router to the web and host a website off your PSP.
Also, starting at 0.6, you can upload files to your PSP wirelessly from anywhere in the world just by using your web browser.
There is also a new module called LHP included. This allows you to embed Lua code in web pages, to create dynamic server-side scripts on your PSP.
Changelog
0.6
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* Created the first implementation of LHP, for Lua-powered dynamic pages with psp-httpd
* Server can now parse variables in both GET and POST requests
* Included a script for file uploading
* Folder listing templates include a link to file uploader
* All network output (folder listings, headers, etc.) is now sent in chunks
* Server will not automatically restart after an error
* Added orange as a colour code for graphicsPrint
Attainable Download Speed Chart
This is a quick list of common chunk sizes and the speeds that can be attained with them under optimum conditions. Sizes under 8192 are recommended if you have a low-quality connection to your access point.