Little mentioned feature of the iPhone – It’s a great WiFi detector.
Honestly, had Apple mentioned the fact that the iPhone detects just about every visible WiFi network you walk by, that would have been just one more selling point for me. I’ve been mulling over getting a Canary Wireless Digital Hotspotter for quite a while now. Now, who needs it? My iPhone automatically tells me all about the nearby wireless networks and shows whether they’re encrypted or not. (It doesn’t tell you what kind of encryption until you try to connect, but that’s more detail than the Airport menu on OS X provides to you.)