It's huge, it only has 1GB storage, no headphone jack forcing you to use the inbuilt speakers or bluetooth headphones, it only has 5 hours battery life, it costs $350, and if you managed to fit it in your pocket it would keep changing track when you walk. Having said that I think that if they made a smaller less egg-shaped mp3 player that had motion controls that could be turned off when in your pocket then it would be quite a good competitor to the ipod shuffle.
What's your impression the coming Sony Rolly DAP? Ok, the actual player hasn't been introduced yet, but I hyself can't wait to hear more!
At least the player is supposed to have built-in motion sensor and louspreakers. Social interaction would appear to be the key.
I am looking forwards to seeing the player communicating with my PS3 as well as having bluetooth earphones as standars accessory.
more info about the player at: www.rolly-show.com and http://www.rolly.tv

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