I’ve been researching Microsoft’s push-mail solution and have came to the conclusion that their solution is quite adequate for the task at hand. The differences when compared to the Blackberry solution are noticeable, but once up and running will be seamless to the user.
Microsoft’s requirement for a HTTP request to remain open for x number of minutes and then re-issue the request if no change is returned obviously mandates an unlimited mobile data package added to a user’s mobile phone plan.
This is a key difference, because the user needs to know what to request from their carrier to support the phone, unless the carrier is providing the email address and provisions the service specifically to support the new push solution.
Even though the system is technically not a “push” solution, the end result is indistinguishable from the Blackberry service, with more device options (more on that later).