Butterfly concept phone a beauty

Now the Butterfly concept phone is definitely something worth drooling over – just take a look at the slide-up design which is similar to that of the Samsung YP-K5 along with its two absolutely gorgeous AMOLED displays. Featuers at the moment include a media player and web interface among others, and the touch sensitive interface make it look like a surefire winner. One must wonder though, if the Butterfly concept were to actually be mass produced, what would the battery life be like?