The bit that chaps me is that the way the are trying to explain all of this is so half-witted, that they are working to cast a negative light on "Direct Push" as it is implemented in Exchange and Windows Mobile. They are spinning this so badly that they are confusing consumers very badly - some of the worst explanations and apologists' drivel attempts to shift blame onto Microsoft - it's insane.
Look... if you're new to mobile messaging, understand this: Exchange/Windows Mobile's Direct Push does not need SMS, or an SMS gateway. The mobile phone does not "poll" the server at all - it polls "with" the server - so as new messages arrive at the server, the server sends a notice to the mobile phone over the carriers data network, which interconnects to the public Internet. It is sent as soon as it arrives into the user's mailbox!!!
With Windows Mobile 5.2 w/SFP and higher, the user never has to "sync" or "Dock" "craddle" or otherwise bork with their phone - it all "Just Works" and it is secured using SSL. Nothing special is needed and all email, calendar items, contacts and tasks are sync'd bi-directionally between the host server and all connected phones, and computers - regardless of the number (I personally sync 11 computers and a phone)
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