Go check out F#

An ol' buddy of mine recently wrote a super-short RPG system called F# (pronounced "Eff Sharp"). [download link] It's based on Fate, which in turn is based on Fudge, and it trims both down quite nicely into an extremely elegant core. The rules fit on 1 page, and he includes about a dozen extra pages of in-depth explanations (and one optional rule). I'd like to encourage you to check it out - it's a fun read, and looks like a very flexible system. It's easy and light enough for con games and a variety of one-shots, and has decent character-development rules that tempt me to try running a campaign of it.