This is awesome. So simple, yet so practical.

Try this for a free, built-in, distraction free writing environment:

1. Launch TextEdit
2. Command-shift-T -- or Format > Make Plain Text
3. Command-Return to enter full screen
4. Command-Option-Ctrl-8 -- Switches to White-on-Black mode

(Almost as functional as WriteRoom?)

Shiira is a web browser with real fullscreen mode.

I loooooooove this program. Love love love.

Not entirely full screen: you'll still see the scroll bars, and a 1 pixel high line on top. Nevertheless, to watch a Flickr slideshow Mega Zoomer works great! :)
(Except you have to hide/show the status bar, toolbar etc yourself.)

Note: Opera 9.25 does a real full screen (out of the box), but doesn't respect embedded color profiles of photos (check here, hover on the photo in the center, on the top).

greatest invention since sliced bread!!!!

@ geet2i: maybe you don't have the rights to do this?

i ws unable to install it. the .bundle file won't move to the plugins folder. any help?

This, combined with Preview (with the toolbar hidden) makes for excellent clutter-free e-book reading. It's just awesome!

This is great... I've used Macs forever, but I've always been frustrated that the Mac does not have a Windows-style maximise. Shame it does not work with Carbon apps... anyone knows if there is a way of doing this?

super useful if you vnc to your desktop by laptop and you don't have a full screen feature on your client, e.g. gotomypc!

that's one the best things, I've ever got in mac. I wish it was also working for Firefox? any solution for running firefox in fullscreen?