Amazon music installed fine on my nexus 5 but it only allows me to stream music. When I try to download albums to my device it says that it is not supported for my OS yet.
For some reason the fact that Wemo doesn't work isn't all that surprising. It has been one of the touchiest apps that I have ever had to deal with. I hope that it gets fixed quickly to get back into at least what Belkin considers working order.
Nook app has been updated to work with Lollipop. Have it on my Nexus 9 as of today, didn't do anything more than start reading a book, but it seemed to be working fine.