>>>>http://www.networkworld.com/community/blog/its-programmer-day-best-you-can-do
>>>
>>>Happy Programmers Day to You too.
>>>Thank you Greg.
>>>today is
>>>

DATE(2010,12,31)+2^8

>>
>>Before we converted the telephone system so that everyone must always use 8 digits, we used 5 digits locally. My company's number was 65533, but in my emails to other programmers, I always wrote 2^16-3.
>
>I wonder how many calls you didn't receive ;-)

That's a way to congratulate a programmer on his Day. No phone calls :).