MAKE Blog's PT sez, "Today is the day we can run homebrew games on our PSPs (1.50 versions, aren't you glad you didn't update!). Anyway, if you have a PSP and you want to run games that people made themselves and just experiment with programming on the PSP, the PSP launcher was just released. Download it here, grab 2 memory sticks (the included how-to shows you how and why). Then go get some games, ebooks and more!"
(Thanks, pt!)