Only in Japan. The album is available on iTunes for download for ¥1,800, or ¥150 per track. But unless you have a Japanese account, you won't even be able to find it. Of course, you can go ahead and change your iTunes account's region to Japan, and then find it by searching "We are ROCK-MEN." However, unless you have a credit card registered in Japan, you still won't be able to buy the music. But in the above link you can at least listen to samples, which range from 30 seconds to 1:30.
Way to go, Apple. Really not seeing what's so great about this system of yours.
News via Rockman Unity