Windows Phone Applications and Network Traffic

It's interesting to see what data flow through internet from some Windows Phone applications. With Telerik's Fiddler it's possible to see all traffic. I use Fiddler from time to time, but I have never realised I can see the traffic from my phone too. A laptop connected with LAN, WiFi shared through Connectify. Phone connected to WiFi with proxy. Don't forget to tick "Allow remote computers to connect" in Fiddler's options. Run an app on the phone and check the traffic in Fiddler. Many apps go to ads and stats servers. Some of them, you would say don't use the network at all surprisingly connects to strange servers. Some don't bother to encrypt API keys, or whole traffic.