In this podcast, Thomas Domville demonstrates Parcel - Delivery Tracking, an iOS app that enables you to access tracking information for 300 delivery services, including UPS, USPS, FedEx, DHL, TNT, LaserShip, Aramex, OnTrac, China Post, Amazon Logistics and many other carriers.
You can use its widgets to see your upcoming deliveries and the share extension to add a new delivery directly from any other app.