That explains why my Eclair phone receives the app installation "tickle" 
from the Market webapp.

Dianne, please correct me if I'm wrong:

1) The foundation for C2DM was always present in Android, Google apps used 
the mechanism since the beginning, and was made available to developers 
since Froyo and then officially received the C2DM name

2) If I want to develop an Android app that receives notifications from a 
web app using the mechanism, I have to restrict my user base to Froyo or 
higher. There is no other way



El lunes 1 de agosto de 2011 23:18:48 UTC-3, Dianne Hackborn escribió:
>
> No that isn't true.  It is the C2DM mechanism.  Android since 1.0 has had a 
> single constant connection to google services to receive "tickles" when 
> there are things to do -- single email or contacts, etc.  One of the tickles 
> is to perform app downloads.  This is the exact same mechanism the C2DM is. 
>  It has been there since 1.0 for the Google applications, and was only ready 
> to be exposed to third party developers in Froyo.
>
> (Also fwiw this is technically not part of the Android platform itself, but 
> proprietary features that Google supplies to developers on top of the 
> platform.)
>  

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