A few weeks ago AerialX started the open-source PS3 homebrew SDK PSL1GHT, and today he has http://twitter.com/AerialX/status/29257502170 that PS3Load is available (essentially Wiiload for PS3) to run SELF programs via wireless or wired network shortly followed by a bugfix update and adding support for sending zips for apps that need data files.
Download: PS3Load for PS3 / PS3Load (PKG) for PS3 / PS3Load (and PKG) for PS3 v0.2 / PS3Load for PS3 v0.2a
To quote: "As an example I wrote a program called PS3Load.
For those familiar with Wiiload and the Homebrew Channel, PS3Load allows you to run SELF programs over your wireless or wired network!
To use it, simply run Wiiload with a .self file, and point it to your PS3's IP address.
PS3Load is included in PSL1GHT's samples, but I've also attached a precompiled self for running directly from app_home (package coming soon).
For the ultimate fun, ps3load ps3load into ps3load so you can ps3load while you ps3load."
More PlayStation 3 News...