Re: Several Questions:
DSLR Digtal Single Lens Reflex
1. The NEX-5R is not a DSLR
2. The NEX-5R is not a phone
3. The NEX-5R requires gigantic lenses to cover its sensor
4. The NEX-5R weighs 275g without a lens
5. The NEX-5R has no built in flash
Do you need any more?
I'm not saying this is the phone/camera for you but for a lot of people this is all the camera they will ever need, it will be way better than any camera they have ever owned before and it's a smartphone at the same time.
That said, no upgradeable storage is just idiocy.