Sony have given their Xperia TX a nice feature set to play with, which is actually a long list of included goodies.
There's a lot to use, but for the Google-centric user like myself, most of this stuff is useless. But, if you were a Sony fan and used other Sony products like the PlayStation or a Sony-branded TV, this feature set is actually quite stellar.
Sony have used the now-aged "Timescape UI", which has been around since 2009, but it does an okay job at splashing some customization to the Android UI. The phone UI isn't changed too much, but it has a subtle change in play, which makes it look nice. I didn't like being the fact that the previous calls section is crammed up the top - with the keypad smack bang in the way.
Multi-tasking receives a little edit on the Timescape UI, being placed on the right and giving you options for some accessories to be opened up. The usual swipe-to-dismiss is still at play here, but you can pull up some cool hovering apps, too.
There's the calculator on the left, a timer, "Doodle", and the sound recorder.
Removing apps gets a nice change with Timescape UI, where there's little red x's next to the apps you can remove. This isn't a game-changer, but it's a nice addition.
Plugging in the microUSB cable provides you a pop-up with LiveWare manager, which can give your phone the option to set a task. This can be used for when charging your phone at night next to your bed, so that there's a recommended application to start when the accessory is connected, such as the alarm clock.
Another thing that Timescape UI does nicely is the pull-down of tabs you can do to features on your phone such as turning on and off Wi-Fi, GPS, auto-sync and more. It's nice to have nearly every useful feature on the phone accessed from here instead of just Wi-Fi, Bluetooth, GPS and syncing that is standard on most Android-based smartphones.