You can spend a lot of money on a handbag, so why not get one that's functional? These co-Mobile Speakers designed by Japanese artist Yoshihiko Satoh are not just styled to look like a bag, they are a bag, sporting room for your iPod to serve tunes and maybe a bento box to serve lunch -- but admittedly not much else. They're available in dark wood or maple and will set you back ¥31,500; about $335. Sure, that's not cheap for a 30 watt speaker dock, but we've seen far more expensive purses th