Sony Hong Kong posted a video on their facebook page where YUI talks a bit about her decision to take a break from being “YUI” and try different things.
Embedded video (requires flash):
Link to the facebook video
Unfortunately, neither the embedded video nor link will work on iPhones, so you’ll have to use a PC or go to Sony Music Entertainment Hong Kong on facebook and browse until you find the video. I also shared the video on my timeline.
Update: I posted a longer interview here.