No problem, even with the Pi, Beagle Board, and Tessel I carried with me to/from Tel Aviv earlier this year. Might be wise to have a portable / USB battery available to show things are able to power up -- just advise I was given once, but never had to use.
Thank you.. Even if I take some USB or If I can connect it to my laptop and start PI up.. I won't be able to show anything to them. Like connecting it to monitor etc.
unless I am missing anything?