In semiconductors, Intersil, ISIL, is #1 in 802.11b networking. About 30% of their revenues comes from wireless networking. They provide chips to Cisco, Dlink, Linksys, etc. They practically wrote the 802.11b protocol. They also practically wrote the 802.11g protocol which is going to start appearing soon too.
The company is no secret in the investment community though, which I am a part of.
Agere, AGR, is #2 in 802.11b wireless networking. Proxim, PROX, also does wireless networking but mainly 802.11a with some b. Texas Instruments and RF Micro also have revenues from 802.11b but they are both missing parts from the 802.11b chipset.
There are alot of other companies working on wireless networking, public and private, so it will be a crowded space soon.
But make no mistake, none of this stuff is a secret on Wall Street. There are always write ups on this sector. In fact, this weekend's Barrons had something on Intersil.
DD