You are bidding on: a MtGox coupon for ordering a free Yubikey directly from mtgox.com (otherwise sold $29.99 by them).
Bidding starts at: 0.1 BTC
Bidding stops: when reaching 1.00 BTC, or when I feel the highest bid is high enough.
The coupon is valid for one month starting today (I just got it from Mt.Gox today).
Happy bidding!