What phone OS provides the best exchange email support? I'm specifically looking to be able to flag messages for follow-up.
Windows Phone 7 has the nicest looking Mail support and works really well with Exchange 2010.
iPhone has the next best implementation but there seems to a lot of sync issues with appointments missing etc.
Android has good sync support but no remote wipe feature unless you use a third party email app. it is the best at syncing multiple accounts syncing it has not created any duplicate contacts in any of my accounts.
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