I am currently using a Blackberry device for e-mail and calendar reference. However, as has been pointed out many times on this forum, it is useless when it comes to managing tasks, especially based on the GTD model.
What I would really like is a Palm/Phone replacement that offers the same kind of real-time e-mail capabilities of the Blackberry. It needs to sync with Outlook, preferably on the fly, as I send and receive messages. This is the one thing I love about the Blackberry.
Will the Treo 600 do this? If not, can you recommend another device?