There's been some discussion around Palm's VersaMail client being compatible with Google's Gmail. We wanted to clarify that currently Palm Treo and Centro smartphone customers can access their Gmail accounts using the POP email protocol. While VersaMail supports the IMAP protocol, there are some known incompatibilties and limitations with Gmail. For example, VersaMail does not support IMAP-IDLE, which is used by Gmail to deliver continuously updated email. For Gmail users on the Palm OS, there are aftermarket email solutions that support IMAP-IDLE on Treo and Centro like ChatterEmail.

Source: Official Palm blog

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