newtonapple··on Mac OS X.7 "Lion" previewYou can simply map the menu item "Zoom" under "Window" to your preferred keyboard shortcut. I use Cmd-Enter. It'll even toggle between "fullscreen" and normal screen. It's not true fullscreen, but close enough.
newtonapple··on Algorithms for Massive Data Sets (Lectures from the Princeton CS department)Most of the lecture notes are at bottom of the page.
newtonapple··on Ask HN: Review my startup - Scribd (YC S06)As for #3. Try our fullscreen mode. It's awesome.