I would point you to this and other threads about Android presence:
In short, it isn’t the SmartThings app in all (most) cases. I think there are things the devices are doing.
To the other points here, we are just now recovering from the hiring “freeze” and general focused attention on the due diligence etc that goes along with large deals like the Samsung acquisition. We are growing. We have added nearly 10 people in the past month. 5 new people (4 engineers) have started this week and we have offers to several more. We could double our engineering team and not even break stride with the number of features and fixes we have ahead of us.
We are working on a lot of things. Many of them are not on people’s radar but that doesn’t mean we are ignoring the improvements we need to make to core functionality and Labs integrations. Those are underway too.
On the SmartApp and device type submissions, we are approving as many as 10 in the next 5 days with a steady stream from there on. In short, we appreciate your patience.