Coming from WP7 (Lumia) to WP8 (Lumia 920) I can already say there is a huge difference. I only had the 900 for two weeks because I felt like there literally were no apps for me to do anything with. Now I have almost everything I could want. So yes, I think the apps are coming. But to see true success, we are going to have to see WP8 sell in large numbers. It's too early to REALLY know what these numbers are so far. But high sales volumes will attract the big devs. Once the big devs adopt the platform, others will be soon to follow.