Review: Motorola CLIQ XT
Messaging is built directly into several key aspects of the phone. Blur integrates tightly with all your contacts, so when you open your address book and look at any given contact, you'll see the latest message they've sent you or some of their latest status updates. No matter where you go, you can't help but see Twitter and Facebook updates.
The Happenings app is where it all happens, so to speak. From the Happenings app on the home screen, you can reply directly to any type of update or message via a link. You can also choose to view just Facebook updates, just Twitter updates or just MySpace updates. The Update widget on the home screen lets you update one or all of your social networks at once. That's handy if you like Twitter and Facebook to be in sync. The Messaging app can be viewed in one long stream, or you can parse out the different types of inboxes (SMS/MMS, IM, Facebook Email, Twitter DM). It takes a while to get used to how it works, but you can quickly scan through messages directed at just you.
As for Gmail, there's the stand-alone Android application for that. T-Mobile has also provided its own email client. Exchange email is supported, too. On the instant messaging front, Google Talk is built in, as is support for AIM, Windows Live and Yahoo.