Portal co-creator, Kim Swift, is working on a game titled Quantum Condundrum for Square Enix at Airtight Games. The game is slated for PC, Xbox Live Arcade and PlayStation Network, and this morning, Square Enix Europe announced it as a summer release.
In Quantum Conundrum, you play as a kid, visiting his uncle, an inventor named Professor Quadwrangle. After an explosion happens at his mansion and he goes missing, you need to track him down with the help of an Inter-Dimensional Shift Device, which lets you shift between the “normal” and “fluffy” dimensions to solve puzzles. Here’s a comparison of the two:
In addition to Normal and Fluffy, the device is also capable of accessing three other dimensions. You can learn more about the game on its official website We’ll keep an eye out for North American release info. 
