So you're going to celebrate refactoring a mathematical constant to give a neater presentation on a day chosen based an apparently illogical ordering scheme for dates.
That has to class as irony.
Out of curiosity: Does anyone here genuinely believe that Pi should be the circumference÷radius and hold that dates should be written Month/Day/Year ?
I've heard one reasonable defence of American date ordering based on actual priority of information (roughly: "you want the month first to broadly narrow down the locus but the year will be assumed"). But I still go with English or just [truncated] ISO dates.
I see where you M/D/Y people are coming from, but can you at least agree that "June 28, 2010" -> "[Month 6] 28, 2010" -> "6/28/2010" is at least founded in some kind of logic?
Wouldn't it be awesome if somebody already had this planned, complete with a domain name, a compelling candidate for the new constant, and even a whole freaking manifesto written just to promulgate proper pi? I for one wouldn't want to miss out on that, so if I were you I'd hint hint be watching Hacker News quite closely on June 28. ;-)