Okay, just read about what Mastalab is and you definitely shouldn't be using qvitter API given that some instances (like the one I'm using) don't have that plugin installed.

About getting notifications, I've been using @andstatus and it is very competent in notifying me, so I guess maybe that app developer might be able to provide you with the required guidance. Or you can just look for the bit of code handling that on AndStatus, it is FLOSS :)