I502's getting a hearing tomorrow in Olympia. RIGHT NOW, as in, RIGHT FUCKING NOW, would be a great time to drop your states reps a friendly email in support: Write the bastids!
My anecdotal information indicates that WA voters may well pass it this November(the legislature won't). The first thing I do with audiences is present the basics of I502 without comment, break them up into groups, give them 10 minutes to discuss, then 1 minute to present their group's 'yay or nay' position. So far, every audience (now totaling several hundred folks) has overwhelmingly voted in favor. These groups have been all over WA, too, including some pretty conservative areas.
It's only after this exercise that I present my arguments in favor.