There's a careful dance done between mammoth partners and small companies as to when you can speak their name in a press release: Broadcom received the go ahead, as you can see, to state that Microsoft's new 802.11g home wireless products will use their chips. This was known for a while, but this is the first public announcement, and should be yet another boost for Broadcom.
Microsoft's products, which I haven't had the chance to use in their previous or new incarnation yet, have the unique and much-praised distinction of encouraging users to turn on security and actually facilitating distributing the key (using a floppy disk, but, hey, whatever works) among computers on the network.