So I play baseball at my college. We are constantly on the road and one of the main reasons I wanted my iTouch was to keep me busy on the road. However, Ive come to the realization that my battery will not last nearly as long as I had hoped. With a 4+ hour trip to Wake Forest coming up Tuesday I was wondering if anyone had any recommendations on a good portable charger? Ive seen some but none really specify if they work with the iTouch or not, also they dont say if I can use my device and charge it at the same time. Any help would be appreciated!