I had deliberately refrained from any F-35 comparisons because that (and the fact that for the price of two F-22s, you have the entire Army construction program budget for the year - Stateside, OCONUS, emergency, planned, and $192M West Point barracks...) is one of the things that makes me start ranting uncontrollably.
I should point out that the American military actually has a better record for interoperability since WW2 than Kurt gives them credit for. Part of this is because, as the single largest buyer, the Army is usually willing to let other services do the prototyping and testing - the Stryker is a loose adaptation of the Marine LAAV concept, the M16 was first adopted by the Air Force, the upgrade programs on the M16 were driven by the Marines... you get the idea. Part of it is because of the pressures for joint operation - if everyone has to use the same ammunition types (7.62 NATO, 5.56 NATO, and 9mm in rough order of adoption), everyone might as well use the same magazine types, and if you have to be able to talk to the British, the Germans, the Italians, and the Poles, you might as well make it so your army and your air force can talk to each other. Wasn't always the case; early in WW2, Marine observers calling for naval gunfire had to rely on wigwag flags because the shore radios and the ship radios weren't capable of operating in the same frequencies.