Oh man I can't believe I forgot to post this. Yeah so an iPhone / iPad application came out recently, there's a free version you can try or a full version you can buy. It's basically a character interaction app where you can touch the character on screen and they say lines from the show. The lines were re-recorded by the actors specifically for this app. Currently it's only Hibiki but Tsubasa and Chris will be added later (and supposedly a rhythm game of some kind).
As far as I know it's available for download regardless of region but I don't have an iPhone so I haven't been able to test anything for myself. If anyone who downloads it wants to add more details that I haven't mentioned here, please do so in the comments!