At least some Delivery Confirmation is indeed tracking
Example: (read from bottom)
Service Status of Your Item Date & Time Location Features
950011099526309248xxxx
First-Class Mail®
Processed through USPS Sort Facility
April 03, 2013, 9:55 pm
DULLES, VA 20101
Expected Delivery By:
April 5, 2013
USPS Tracking / Delivery Confirmation™
Depart USPS Sort Facility
April 03, 2013
PORTLAND, OR 97218
Processed at USPS Origin Sort Facility
April 03, 2013, 12:08 am
PORTLAND, OR 97218
Dispatched to Sort Facility
April 02, 2013, 5:51 pm
PORTLAND, OR 97210
Acceptance
April 02, 2013, 1:31 pm
PORTLAND, OR 97210
Furthermore, since the destination is near Dulles, I expect delivery to be one day earlier. Not so shabby, a summer UQ delivered coast to coast in 3 days for under $4.