Twitter for BlackBerry 10 has updated to version 10.0.0.36 in BlackBerry World. This update looks like it was just a maintenance release, no new features were added. As of now the Twitter for BlackBerry on OS7 has a bit more features than the one on BlackBerry 10, I am still waiting for multi-account feature to be added on Twitter for BlackBerry 10.
Also if you all are looking for a Twitter alternative you all can try out Neatly, a BlackBerry 10 Twitter client in which I purchased yesterday, seems pretty basic as well. Both apps look great on the Z10 though, just lacking some more features.
Download Neatly or Twitter for BlackBerry 10. If you already have Twitter pre-installed on your BlackBerry 10, simply go to BlackBerry World and check for updates. For help on this check out my How-To Check For Updates In BlackBerry World On BlackBerry 10 guide.