
Originally Posted by
Bruno
For the non geeks:
1337 is 'leet' if you substitute letters for numbers.
Leet is short for 'elite' and is used to indicate either high level of skill (in coding, hacking, cracking, ...) or a powerfull (and expensive) piece of machinery.
Pics or occurrences of certain numbers are considered funny or cool. 1337 is one of them.