The NokiaZLauncher seems to be released some hours ago
Its still an pre-beta app but the launcher still doesnt allow widgets but maybe in the future.
The launcher also works with gestures and learns a bit from your actions and predict it in the future to get it easier for you,
By simply drawing a Letter like T will preview a list with apps,names with the T after 4 gesture letters it is also going through google so its pretty advanced if you ask me. Its really a troll action from Nokia to microsoft lol. Have fun with the launcher since maybe not everyone know it yet because there is also nothing in the apps forum here.
It works properly on the Nexus4 btw, non rooted and stock for the guys who really want to know.
Video preview which i just found: