Using the Bing Maps control in a WP7 app can incur a rather large memory cost when compared to the rest of an app. Typically I see an initial cost of approximately 8 Mb to show a full screen map when the zoom level is set to 16. This is not a concern, and in my opinion this shouldn't be either. Whats interesting to see is whats happen under the covers from a network perspective and to see if I can see any correlation. None of the following has any scientific basis, more a set of observations. This is very simple to do, all we need to do is configure the WIFI on the device and then reconfigure Fiddler for remote connections. You can find all the detailed required in this great post by Eric Law. For the observations I used a modified version of the app from the 'How many pins...' post I did a couple of weeks ago. It only shows the map control it does not display any pins. When the app is initially installed and run for the first time I'm observing the following ne...