***** http://www.wutchan.org/lolwuttv/index.htm *****

Works on:
12chan.org,
28chan.org,
2kochan.com,
300chan.org
4chan.org,
420chan.org,
n7c.org,
711chan.org,
freechan.org,
gurochan.net,
infinitychan.org,
iichan.net,
iiichan.net,
koichan.net,
kusaba.org,
wakachan.org,
wutchan.org

What it does:
Minimizes the post form to the bottom right corner.
Post form scrolls with the page and remains transparent while idle.
Hover over the Field header and the field will magically appear.
Enjoy.

Looks like this:
http://awesumness.googlecode.com/svn/trunk/Chan/Quickpost.png

I didn't go through EVERY board to find the ones that don't have a name field.
Updates:
rs.4chan.org has been fixed.