Guys,
We are considering putting something out there that will utilize the Method API along with a third party shipping/tracking service (Aftership) and provide a service that will pull tracking data based on a field in your estimate/invoice/sales order/purchase order that contains your tracking number.
This can run on a daily/hourly basis and will push the last status (checkpoint) back into a field in Method.
We are testing it right now in our instance but might offer it as a 3rd party service. If you are interested reply here (or DM me... if that is even a thing here).
Feel free to ask any questions.
Bob L.