This was a bit tricky, but quite fun, and I got there in the end. Made by some level designer from Bethesda.

http://www.twhl.co.za/vault.php?map=4842

I think I've played that one ages ago, was pretty hard IIRC.

The whole room rotates. It's epic.

Oh its the one where you leave the room and press the button to make it rotate? Yeah, I couldn't do the bit with the orb.

I did that. I feel really proud of myself now.

i take it this is a custom portal *edit* map?

if so, how many maps have been made and are they good?

although, i still havent completed portal yet ^^ or hl2e2 for that matter ;o

There are loads of custom Portal maps, going all the way up to full packs (Prelude and Flash Version Levels). Some are good, some aren't so, you've just got to try them.

And complete Portal dammit!

im trying to find time, atm i get carried away doing other stuff instead . its on my imaginary list of 100 things to do before i die!