GearsMonkey is a project on Google Code that uses the Greasemonkey scripting plugin to add Google Gears support to any website. The current code will let you take Wikipedia offline, letting you read the web encyclopedia offline, but with some coding skills you can modify the code to take practically any website offline.
Google seems content to continue leaving the job of adapting sites for Gears to others, which makes sense given the incredible amount of work it would take to do everything itself. Still, the strategy isn’t working, with very few sites supporting Gears, so maybe Google needs to get a little more aggressive.
Yet another iPhone hacked application has popped up on Google Code, this one an emulator for Nintendo Entertainment System ROM games. I don’t know how the hell you run hacked code on an iPhone, but this is the first damn thing I’d install on an iPhone if I were you. The NES emulator on my Windows Mobile phone has added days of utility to it, though I guess playing Teenage Mutant Ninja Turtles to completion* wasn’t very good for productivity.
There’s also iPhone Doom.
* - Thanks to the wonders of Quick Save, I beat so many NES games that I played 15-20 years ago for the first time. Wonderful thing beating all the Mario games (including Dr. Mario), Turtles, and a bunch of old favorites.