If you're getting into tracking multiple packages, Delivery Status does a very good job of this: http://junecloud.com/software/iphone/delivery-status-touch.html

If you're getting into tracking multiple packages, Delivery Status does a very good job of this: http://junecloud.com/software/iphone/delivery-status-touch.html http://junecloud.com/software/iphone/delivery-status-touch.h... -- although it's not a webapp.