The only thing I can recommend, if you think you'll have to spend any real time working is this: A four way, surge protected power brick, with a length of cord of at least five meters, plus at least two USB charge plugs and plenty of adapters from your home supply to the local power supply.

You have no idea how many hotels I've stayed at where the nearest power outlet in the room is nowhere near the desk (or whatever counts as work space). Not software I know, but then again I don't rely on specific software for the actual travel - just a solid to-do list beforehand and a hawk like attitude during the actual travel (really, I keep a mental check-list of what I'm carrying and go through it each time I move).