I use memory map on the PC and the new iPad, with the excellent GNS bluetooth addon to make up for the crap AGPS nonsense that Apple pretend is GPS.
Skydemon light is all you really need.
I would suggest that you avoid a mistake I made on Saturday. Sitting at home, about to leave for the airfield, I turned the iPad brightness down to conserve battery life. On taking the iPad out of my bag after getting strapped in, I had to put a jacket over my head to make the environment dark enough to be able to read the screen, in order to turn the brightness back up to a level where I could see the map.