Because part of my career has been designing IT infrastructures for availability, I tend to shy away from the "putting all the eggs in one basket" approach for technology. Sure, a single smartphone for calls, pictures, web, GPS, etc is great, but lose that one device (or have it stolen) and you've lost multiple functions. So at the moment I'll keep my GPS in the car, use a point and shoot camera for events and vacations, and use my laptop and computer (tough to write a lot of code or design things on a tablet), and keep my landline as backup for my cell phone. Sure it costs money but it is within my budget, and I like having the flexibility and availability.