A friend of mine is an extremely talented developer (between jobs actually) and he loves his tech gear. Specifically smart phone tech.

We had a long argument about usefulness, because as a Writer, I carry a small notebook and pen. Our joking back and forth went over stuff like "Battery Life" (Phone has a concern, notebook does not) and "Water Resistance" (neither scores that great), "Cost and Maintenance" and so on and so forth.

For my needs - writing notes - the little old school approach won, but it was inferior for his needs.