Review: HTC Sensation 4G
The Sensation 4G follows the path set by most Sense phones that have preceded it as far as message capabilities go.
It offers the stock Gmail, Google Talk, SMS, and email apps, as well as a third, T-Mobile email application (is this really necessary?). There's no other instant messaging software on board. The stock apps all work well, as they do on other Android devices.
Rather than install the native Twitter and Facebook applications, HTC thinks you'll prefer its own software. Some of you might; I don't. Its Peep Twitter client is on board, as is HTC's FriendStream. Peep is acceptable as a Twitter app stand-in, but I prefer the official Twitter app. FriendStream performs better on the Sensation 4G than I've seen in behave on earlier HTC devices. It updates more reliably and much faster. It amalgamates all your Facebook, Twitter and other feeds into one place. But it still doesn't replace all the functionality available in the full Facebook application.
The Sensation 4G has Qik's video chat application on board. This software works, but I find it to be frustrating and limiting. It will connect via 3G, 4G, and Wi-Fi, but only works with other Qik users. I am getting tired of silo'd video chat software.
Google's Latitude app is on board; Foursquare isn't.