I think there are a few people who don't really understand the purpose of the EPA's test and what the results should be used for.
The test is NOT a measure of the absolute MPG a given vehicle can attain. If you're a conscious driver and your particular driving environment suits the vehicle, you can easily surpass the EPA estimates in just about any vehicle.
The EPA estimates are a way to compare vehicle A to vehicle B using identical test methodologies. All cars are tested the same way, making the results as fair and equal as possible.
The test itself provides a mix of driving situations to come up with an "average" of sorts. They are not "set the cruise at 60 and see how much gas we use" tests. This is why it's easy to beat highway fuel economy numbers. There are lots of variables between each test: max speed, A/C on or off, max acceleration rate, ambient temperature, time , distance, and number of stops are just a few. All these variables can affect a vehicle's fuel economy.
The EPA tests try to provide a sampling of all those variables and condense it into a single, easy to digest number that a consumer can use to compare vehicle A to vehicle B. Maybe it's the websites, magazines, and bloggers who are on crack for trying to take the EPA test results and make a competition out of it?
If you'd like to see the exact tests, visit:
http://fueleconomy.gov/feg/fe_test_schedules.shtml