Oh, cool - I haven't seen the Freedom before. I think I want a new toy. The micro USB adapter cable is included with the unit. You just need any charger, solar or otherwise, that has a regular old USB port. Plenty of them out there.
As for charging 123a's, or AA,'s my solution was an Ansmann Vario Pro charger, which accepts input from a 12v nominal solar panel (lighter plug). It will do either in the field and is small and light.
But honestly, field solar solutions that actually work are big, heavy, complex things and very rarely worth the effort (over just carrying extra batteries). I have a 10-watt unit. The whole setup weighs nearly a pound... and you still need sun :) It can charge anything electronic in my kit, but you can carry a whole lot of extra batteries for a lots less than a pound, and not have the fuss.