Today kmeaw has made available a video proof-of-concept of his upcoming HPR, a PS3 homebrew network PKG repository which includes a built-in PKG Installer alongside BM (Backup Manager) Enabler LV2 V5 PKG followed by BM (Backup Manager) Enabler LV2 V6 PKG.
Here are some POC details thus far from kmeaw via IRC:
Homebrew PKG Repository (HPR) is currently a WIP but runs on a PS3 with a built-in PKG installer, basically, it is a very simple embedded Web browser that can install PKGs.
It uses HTTP to download PKG files and supports a small subset of HTML, as the builtin PS3 browser is much better than this one in displaying HTML but it cannot install PKGs although a complex markup for package descriptions isn't necessary.
Finally, he has also made available a first version of PS3 View of HPR above for those who wish to give it a try!