Please see http://qt-apps.org/content/show.php/qTwitter?content=99087 for the original author information. I only ported the code to Meego and tested as an exercise in learning the SDK.
As the current version of Qt Creator doesn't support "requires" when building rpms you have to manually install the required dependencies, which are qca2 and qca2-ossl. From the command line:
zypper install qca2 qca2-ossl
After that install both qoauth and qtwitter rpms.
The current Meego (1.1) system seems to have a problem with opening external urls from apps, so if you see that the browser doesnt open up for you to enter your Twitter credentials, you have to also install:
zypper install xdg-utils chromium
(In theory the Firefox installation that comes with Meego should fire up from xdg-utils, but it is misconfigured).
I also can create a version for the ARM7 variant (N900) but I lack a platform where to test and currently the Meego SDK doesnt provide a good way to cross compile and test.