The official Twitter app has been updated to version 1.4, but we're not entirely sure what's changed or if anything has been added. From what we can gather, Live Tiles and notifications are still a no-no, there's no sight of the new Twitter logo, but we've received reports of backend adjustments as speed and reliability have been improved.
The versions have appeared to increase from 1.2.4331.15424 to 1.2.4525.19177, so your guess is as good as ours when it comes to what exactly if going on. Do let us know in the comments should you notice anything in the new version.
You can download the official Twitter app from the Marketplace for free.
Thanks to everyone for tipping us!