Dangan Ronpa is now available on iOS. A free download from the Japanese appstore gets you the first chapter of the game, with the rest available as in-app purchase. The whole game costs 2000 yen, which is about $25. Considering it probably costs about three times as much to import the game, I'd say it's a good price to pay.
The app is universal, customised for both the iPhone and the iPad (iPhone 4 or 4S required). It features retina graphics that look better than PSP in the appstore screenshots. An Android version is also supposed to come out, but the news I've read only mentioned iOS for now.
Getting a Japanese account to download the free chapter is easy and guides are readily available elsewhere. Once downloaded, you can switch back to your original iTunes account and still play the game. If you want to buy the game without a Japanese credit card, there are several places online that sell Japanese iTunes gift cards you can use to charge the account with.
Here's the iTunes link. If you like this game and LP, I'd like nothing more than if you give some money back to the creators. Now there's a fairly easy way to do so. Who knows, maybe if they see a bunch of downloads from non-Japanese IP addresses they might think again about an official localisation.
In case you've missed my earlier comments, this is an awesome semi-VN (There are choices, but the plot doesn't actually branch, and there are a lot of minigames) involving murder mysteries and bizarre characters, currently Japanese only and being Let's Played on Something Awful.
As I do not have an iphone or ipad this is still not much use to me, and I have no idea how many people are willing to jump through these hoops for a game they still can't really read, but one can always hope. I'd certainly love to see these games brought over into English. 999 did okay, right?
... however, if anyone knows where I can lay hands on a monobear hoodie, DO WANT.