"Oh, I really want that cake!"

No, you really don't.

The way they got stuck on level 3 drove me up the wall... My oldest, who's now 11, probably played it first around 6 or 7 and didn't get confused until level 8 or so (if I recall properly).

That all said, it still is probably one of the most perfectly well designed games ever, at least in terms of how it eases you into each lesson during the tutorial levels. I'd also guess we'd see a Portal 3 before a Half Life 3. I'd think they are afraid of HL3 at this point...

Moving this video to ant's personal queue. It failed to receive enough votes to get sifted up to the front page within 2 days.

I loved Portal 1, but still need to play Portal 2.