Episode 4, Your Apple Airline Travel Companion looks at how Apple devices can make airline travel more efficient for passengers, especially during the holidays. The episode also recommends several applications to make the travel process more logistically effective and how to deal with unexpected contingencies. We review the iTraq GPS locator (www.iTraq.com) and Nomad PowerPack battery (www.hellonomad.com) as third-party travel accessories. The episode finishes by reviewing Nutshell phone cases (www.tuffasnuts.com). Applications recommended for your iPhone include Trip It; Kayak; Seat Alerts; Gate Guru; Flightboard; Flight Tracker; and Plane Finder.