wp7 The remote connection to the device has been lost

情况一:

可能阁下正在用调试中，请先停止调试，然后再关闭wp7的模拟器。 其实在开发当中如果不关闭模拟器的比较好。因为模拟器重启又会浪费一些时间。模拟器是独立，就让它放在那里好了。

在 wp7练习一上面也能找到

Closing the emulator stops the application and detaches the debugger. When you do this, the Visual Studio debugger detaches and display a message indicating that it has lost connection to the device

相关链接:

http://topic.csdn.net/u/20110312/17/acf44401-ec49-4d30-aebc-83645cbff4fd.html

情况二：可能是远程资源没有释放

how are you connected to the remote DB? ethernet? wifi? gprs? it could very simply be a loss of network connectivity. also, are you closing/disposing all data resources between uses?

相关解答：

http://social.msdn.microsoft.com/Forums/en-US/windowsmobiledev/thread/eac49c1e-4272-4709-8005-906bcfceef7c

正在学习wp7，已经知晓答案的大神们别喷我！此文仅当以后自己查看。