07/07 is one of the few dates that can't be written in a way that'll send me into a fit (and considering everyone is linking to london_070705 this is a good thing).
If you insist on putting the month before the day, at least be consistent. 9/11/01 (and I've acutally seen this) is simply *wrong*. There's no logic in it. Either it's largest unit of timekeeping/slightly smaller unit of timekeeping/even smaller unit of timekeeping or the other way round. You can't arrange them however you like. [And quite frankly I like to put the thing that is of the most interest in front. So it's hours/minutes/seconds and day/month/year. It makes sense. Trust me.]