Review: Samsung Galaxy S II for AT&T
The stock Android messaging tools are on board and cover the basics with aplomb. The SMS application remains simple yet powerful. Messages are threaded in a conversational style, and media (photos, video, audio) fall in-line with the text. The usual two Android email applications are also present. There's the generic email app for POP3/IMAP4 and Exchange, as well as the native Gmail application.
On the instant messaging side of the equation, the stock GTalk application is on board for Google users, but a catch-all application for other services is missing. If you want to chat via AIM, Yahoo, or Windows Live, you'll need to seek out a third-party solution from the Android Market.
As with the Epic 4G Touch, Samsung's Social Hub is on board the Galaxy S II for AT&T. It lets you manage nearly everything — email, SMS, Facebook, Twitter, even your calendar — from a single portal. It takes a little bit of time to configure, but once you do, it can be your one-stop-shop for managing communications.
It is a convenient tool if you prefer to triage messaging rather than really dive into it. For example, if you wanted to skim through messages quickly, it is easy to jump from Facebook to Twitter and back without having to jump between applications.
Speaking of which, Facebook and Twitter aren't pre-installed, so you'll have to download them yourself.