There really is no good reason, IMO, to disable broadcast of the
network SSID and you simply cause more problems than it is worth.
There are tools that one can use to discover the SSID, Kismet is an
example, even if it is being cloaked. Your much better off using WPA,
strong encryption, strong passwords, etc...whatever your
firmware/hardware supports... Personally I use WPA-PSK (TKIP) with a
long random key with my IPAQ 5555 and Buffalo WBR-G54 wireless access
point/router.
"Lanwench [MVP - Exchange]"
In addition to Richard's answer, which is correct, one of the first
things you ought to do when setting up a WAP is to *disable* SSID
broadcast. Then change the admin password, force 128-bit WEP or even
better use WPA, etc.