At the Consumer Electronics Show in Las Vegas, Voltaic Systems is showing off a variety of luggage (backpacks and shoulder bags) with solar cells on them that can keep everything from iPods to cell phones to your notebook computer charged up. The luggage ranges in price from $199 to $249 (pricing for the one that keeps your notebook charged wasn't available yet). Here at the show, I caught up with the company's COO, Jeff Crystal, to get a tour of the gear (which also includes a bunch of little adapters to ensure compatibility with all your devices).