Anyone Using the t:slim Pump Yet?

Just curious if anyone has started using this new pump and if they have any feedback on it. Not necessarily looking for a new pump at the moment, but always curious about new products.

I'm about 3 years off from being able to get another pump, and I really am satisfied with my Medtronic Revel, but the tslim does look really neat. I wonder how long the battery stays charged with it? I get pretty good battery life out of my iPod and iPhone, I would think it would be comparable. Of course when having to recharge the battery, it would kind of limit you I think, have to be near a power source where as with the Medtronic, pop in another battery and go. I dont know, I'd be curious to know what others think too.