>
>
> Hmm not sure. Consider the following use case: client connects to a 
> channel, some time later he goes offline and comes back, client sees that 
> the token is still valid and reconnects, so far so good. Now on the server 
> I'm tracking the list of connected users. Obviously what I expect is a 
> connected presence, then when user goes offline - disconnected and finally 
> when he is reconnected - connected again. In practice it could easily be 
> connected, again connected and then disconnected. When that disconnected 
> presence comes I have no way of knowing if this one  is the missing between 
> 2 previous connected presences or this one is fresh and the missing one is 
> still coming. Maybe add some kind of counter that would be increased with 
> each presence?
>
>
I have added a feature request to add timestamp for channel presences:
http://code.google.com/p/googleappengine/issues/detail?id=8151
Please star this issue! 

cheers,
Aleksei

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