Boingo is giving away free Wi-Fi PC cards at SeaTac airport with sign-up for Boingo Wireless service. Gate B4. Note that this isn't wireless as in cellular, this is wireless as in 802.11b hotspots in a variety of locations. I could use another Wi-Fi card, but I don't need service right now, thanks. Great idea, though, at an attention-getting location; and if I frequented wireless locations with my laptop in hand, I might spring for the $25/mo.