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Hope people realize you cannot get push e-mail working on an iPhone unless you use their paid .Me service and Gmail, or if your company has exchange.

People should realize that you are providing inaccurate information. Lotus also has a free add-on called Traveler that provides push email functionality.

So you have:

MobileMe - Subscription based
Gmail - Free
Exchange - Free (with Exchange license)
Lotus Notes - Free (with Lotus Notes license)

Then you have RIM, which is never free.
 
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