I've completed all of the challenges on Portal, and have 1000 gamerpoints for The Orange Box in general.  Eager for the Still Alive dwnld to come.  Anyone else complete all the challenges?

  Yeah, I have. One part I got a little stuck on in portal, is where you have to use a chair in order to get into this ventilation shaft. I didn't know you had to use another object, and I couldn't find one for ages anyway, so I must've spent about 20 minutes continuously jumping, hoping that I'd eventually get up there.

  That game was hella fun, though. Can't wait for the new download to come out, hopefully they'll have some fun challenges in there. Not just challenges that mean you have to do them about 100 times so you can get the timing exactly right, or ones that you fail because you aimed about 2mm too far to the right... Those ones annoyed me greatly....

I haven't completed all the challenges yet.
Maybe it is my attention span, but i cannot stand to play the game in long verses.

Just completed them a couple nights ago. The last chamber was really difficult.

I spent almost 2 hours trying to get a gold trophy, then I pretty much gave up on that portion of it.