When I'm reading papers, browsing the web or coding, I oftentimes want to view two windows at the same time next to each other. Windows 7 solves this problem well. Today, I had some hours of free time, so I decided to write a minimalist app (called "Snapper") that let's you snap the active window to the left or right half of the screen, or maximize it, using keyboard shortcuts (Ctrl-A to snap it to the left half, Ctrl-S to maximize it, Ctrl-D to snap it to the right half). It still has bugs, but it usually works fine. I don't have a blog or anything like that, so I'll just "release" it here. It's not a .doc file, but a .tar.gz file, so rename it. Uncompress it and you'll have the Xcode project so you can study the source code and build the app. For the app to work, you'll have to enable access for assistive devices under System Preferences > Universal Access. If you want the app to open when you log in, you can toggle this in Accounts > Login Items. Hopefully somebody will find the app / the source code useful! I hope this isn't too off-topic.