[icey]

What you're describing sounds a little bit like LightTable to me (http://kodowa.com)

[davidfm]

I had forgotten about lighttable, thanks. I'll need to revisit it.

[nnoitra]

What does kodowa do? I really don't understand.

[icey]

Here's a demo http://www.chris-granger.com/lighttable/ (2 clicks from the linked page)

[maniacwhat]

http://www.lighttable.com