incrediBILL - 7:57 pm on May 15, 2010 (gmt 0)
Google driving by and recording networks is the least of your problems.
If you think your wifi is secure, read up on Aircrack and see just how secure you really are.
Sitting here at my desk at the condo using my wifi analyzer I see 10 wifi networks, 8 of them WEP, so I could get access in minutes, clone a MAC address, download all sorts of good stuff and just sit back and wait for their lives to be shattered when the RIAA or the MPAA, or much worse, comes knocking about those downloads.
Good thing I'm not a bad guy or all the neighbors would be in serious trouble ;)
Don't worry so much about Google, worry about all the hackers driving around with wardriving wifi sniffing apps in their smart phones that come back later with aircrack and do all sorts of interesting things.
Short of a man-in-the-middle attack, using HTTPS on any network is secure.
Open networks are even more fun. If a hacker knows where a popular wifi hotspot exists they can just drive up in their car nearby and offer up their own open wifi for you to connect with. This makes them the man-in-the-middle, and when someone connects with the hackers wifi all bets are off.
Online privacy and security are just illusions often shattered when you least expect it.
If you must go wireless, the only real security is wireless broadband, never wifi.
Upon reflection, Google's mapping open wifi hotspots just saves hackers the trouble of wardriving looking for them.