Started and finishes a play through of portal today, got the new achievement for finding radio transmission. What a clever little addition, 26 hidden radios each with a certain spot to receive a transmission. Its great to see valve adding a bit of extra game play to this old fav. The radios were mostly very well hidden and it provided a good refresher on portal puzzles, a great way to spend my morning. The ending has changed but only in a very very tiny way, setting up a sequel. Its very weird for a developer to go back two years later and tack-on a reworked ending, just so the sequel can have more of a connection to it, very strange indeed. It looks as if portal 2 will be set in aperture laboratory once again. I cant wait!