Boingo Wireless is giving away free Wi-Fi PC Cards at Seatac: visit gate B4 in the next few weeks and get a free Wi-Fi PC card (brand not specified). This can be a little tricky at Seatac because security is separate for the B, C/D (Alaska/American), N (United), S, and other terminal gates.
O Pioneers! Personal Telco offers free wireless access in Portland, Oregon's downtown Pioneer Courthouse Square: this urban oasis of brick and shops (and leaky roofs in underground offices, according to a recent report) now has free Wi-Fi coverage thanks to the community networking group, Personal Telco. They're professional now, too: they sent out an honest-to-goodness press release.
Wi-Phone: Telesym's Innovation: while other Wi-Fi phones exist, Telesym may have caused the synapses to burn in venture capitalists and entrepreneurs heads at the same time. While their phone is IP-based and works over a Wi-Fi network, it still requires a central PBX system or server system that they offer for sale. So you buy a license, set up your PBX, buy some phone lines, and offer these Telesym's phones for sale to anybody just like you'd sell a cell phone. Right? Right. (Thanks to Steve Stroh for setting me straight; see next item.)
Focus on Broadband Wireless Internet Access: to the increasingly large group of people who talk sense about broadband wireless services, I have to add Steve Stroh. His subscription publication (linked above) is full of sensible advice born of deep technical and market knowledge. The yearly rate is advertised at $595 for 12 issues. Anyone trying to make a living, start a company, or run a division in which this is your market shouldn't hesitate before subscribing. Disclosures: I don't get a finder's fee for telling you this; I have a free subscription which was not a quid pro quo arrangement.