Growth was driven by the sales ramp-up of ExpressCards, which are small cards that allows certain wireless devices to roam on networks in different countries.

FORBES: Magazine Article

It is already possible to power small electronic devices, such as wireless sensors installed in buildings and industrial machinery, using a dedicated microwave transmitter nearby.

ECONOMIST: Monitor

Cao Gadgets is attempting to fill that niche with its functionally named Wireless Sensor Tags -- small devices which monitor movement and temperature, notifying you if anything's amiss.

ENGADGET: Wireless Sensor Tags alert you to movement and temperature changes, fit on your keyring

For such wireless networks, Google has publicly supported the possibility of using small, inexpensive cellular devices, called "micro cells" that would be located at the access points and would harness the TV airwaves to broadcast the equivalent of a 3G or 4G wireless signal for devices within a quarter-mile radius.

WSJ: Google to Fund, Develop Wireless Networks in Emerging Markets

Wireless devices cannot view most home pages unless they are simplified by special servers for viewing on small phone screens.

FORBES: The Web Phone Evangelist