The iPhone (left) and Palm Pre (right) both use a familiar hierarchical folder structure for easy navigation. The iPhone lets you move messages both from within the message and from the message list (see previous slide), whereas the Pre allows you to move messages into folders only from within the message itself. Both devices keep folders synced, though the iPhone gives you folder-by-folder control as to whether syncing occurs live or when you open a particular folder, thereby helping you optimize power consumption.

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