Ways to guess if C2DM is connected

Question

I\'m trying to place a best guess estimate as to whether C2DM messages can be received.

I\'ve created an application that relies on pushing information to a phone while

Answer 1

This may be a bit naive as I am not an active C2DM user, but wouldn't it be possible to read

/proc/net/netstat

and see if there are any active TCP connections. If there aren't any, then C2DM can't possibly be working. You could also make this technique more versatile by forming a C2DM whitelist that you would expect to find (or maybe its possible to filter on a special C2DM port?)