Agent Frank isn't the only one.
Oh, and I completely forgot to toss a link his way, but Kevin Smith of electricanvil.com is working on a Java PersonalWebProxy project also. With AgentFrank, I've been leaning toward patching the core together as quickly as possible to enable the plugins and scripting I wanted to play with. But it looks like Kevin's spending more time carefully architecting the core using Jakarta Phoenix & some homebrew proxy work. Would be nice to borrow from his work soon.
Who else has code out there that could be assimilated? :)