New security loopholes are constantly popping up because of wireless networking. The cat-and-mouse game between hackers and system administrators is still in full swing.
When wireless cellphones first came out, analysts predicted that at peak, it would only replace 5% of landlines. They said the quality wasn't good enough. Clearly that was improved. I think you'll find a similar thing in solar.
If you go to a coffee shop or at the airport, and you're using open wireless, I would use a VPN service that you could subscribe for 10 bucks a month. Everything is encrypted in an encryption tunnel, so a hacker cannot tamper with your connection.
To be happy in this world, first you need a cell phone and then you need an airplane. Then you're truly wireless.
The most important thing for people to understand is that the basic rule that people have a right to send information over the Internet - even when they are using a wireless device - is part of the framework.