Review: Palm Treo 750
Unlike other Windows Mobile phones, there are two messaging applications on the Treo: one for text and multimedia messages and a separate one for email. The email application is the Inbox that will be familiar to Windows Mobile users, only it's no longer the one-stop-shop for all messages.
As on other devices, the Inbox can sync with an Outlook or an Exchange account, or can be configured to retrieve mail from a POP or IMAP account. It can take advantage of the new Exchange push email if your company makes that available, or can be set to automatically retrieve mail at regular intervals. There is a running count of new mail on the home screen which can be used as an easy shortcut to the Inbox. In addition, when mail arrives, a notification pops up to take you to the new messages as well.
The Messaging application is a Palm exclusive that displays SMS and MMS as threaded conversations. It keeps track of incoming and outgoing SMS and displays them like IM chats by person, instead of just as a list of incoming messages. This display makes much more sense than the traditional text inbox.
Using the Messaging application to compose messages is easier than the old Inbox method. Right from the application you can quickly tap the "New" soft key, start typing out a name, and be composing a new text message just by pressing the down key.