[OSX-Users] Re: iPhone 3.0 battery life?

[Marcus Cobden]

On 19 Jul 2009, at 16:52, Ben Hodgson wrote:

> Doesn't both push and polling operate over any old standard TCP/IP  
> connection (which AFAIK the iPhone has)?
>
> Disclaimer: I'm getting into "I'm not 100% sure what I'm talking  
> about" territory.

I'm guessing that 'True' push would work at a much lower level than  
that, the carriers could actively send out notifications from their  
cell towers in some mobile-phone specific message protocol, like how  
networks tell your phone that you have a voicemail waiting.

TCP/IP is probably how the iPhone has done it.
I think blackberries have some server backend to do this, though I  
can't remember where i got that impression from.

I don't really have much of a leg to stand on here either, to be honest.