0 (zero) is both a number — or, more precisely, a numeral representing a number — and a numerical digit. It represents the concept of nothing; an absence of other values, and is used as a placeholder in place value systems. Zero was the last digit to be incorporated in most numeral systems. In the English language, zero may also be called nil when a number, o/oh when a numeral, and nought/naught in either context.
http://en.wikipedia.org/wiki/0_(number)
The "Zero" is also a sweet, historical plane ;)
[IMG]http://www.btinternet.com/~lee_mail/Zero-1.jpg[/IMG]
** And, according to the poll, even numbers rule :!: :!: :cheesy: