There are some annoyances that, after 5 years with N9, make it hard for me to switch. It's not about the device, as it's performing very well. It's the OS.
Excessively slow transitions, underdeveloped browser search engine, lack of features in general. It may sound prosaic, but as I am optimistic about the future of this platform, I'm just overwhelmed with my work. Just can't look at it lying on the shelf. Aurajoki update looks promising though.