Seriously, what the hell, Sony!? You already announced that "as we speak, people in Japan - the system guys - are discussing when we can put these features in," back in November, so why are we still waiting for a feature as basic as MP3 support?
No, I'm not paying 60 dollars a year to listen to music that I already own, even if it would introduce me to a lot of music that I don't own. Just give us the damn MP3 support that you promised. It's been over six months, now.