Well, it is and it can only be bought at the GAME retail shops. The game is also out on the Wii and PS2; however, the PSP is the definitive version with the most number of games in the collection (24 in all) and with some added features only found on the handheld. A cool feature is the ability to use songs stored on your memory stick for BGM selection. You can also make jigsaw puzzles out of your photos.
North Americans don't get uppity over this sneakily released game; we've had this title on our store shelves for about one year now. This seems to be an evolving trend: swapping years-old games across the Atlantic. Anyway, if you're interested, check out the official website to see a full list of classic board games.