The lights are on
@Jpow11: But I felt the short gameplay was part of what kept the game fresh and great. It wasn't long enough to get dull and tedious. I personally felt that Zero Punctuation's review of the Orange Box nailed it for me (as far as the Portal section) "It means it doesn't outstay its welcome and it narrows the gap between you and the fantastic ending"
@Enigma: Some of the pictures don't work but as far as the ones that do, great find.