IBM also said "But this is just a start. More improvements to power conversion should be possible." So now that the poc is done they can refine it and make it b

IBM also said "But this is just a start. More improvements to power conversion should be possible." So now that the poc is done they can refine it and make it better. Also I agree with @machrider its all about the cost per watt. Thats what is going to make it popular or not.