I had serious problems getting my Sprint phone to keep working -- between phones and chargers, I kept returning 'em (and lost two chargers along the way)... and a friend of mine offered to sell me his smartphone so he could upgrade. My phone worked for several weeks running but I realized that I'm out riding on the wild open prairie (incoming goose!) often enough that I want to be able to see those big dark clouds and check the radar. I even did it last week at the grocery store and shopped with leisure 'cause they were just clouds, not a storm...
I want to try to figure out a way to get a to do list on it... but I've never in my life been able to do that with any kind of planner, so that's a long shot. (If I even remember I have a list, I usually don't know where it is. I'm accustomed to cleaning out drawers and finding forgotten evidence of Some Organizing Attempt...)
$25/month gets me 300 minutes a month and all the INternet I want. I generally don't check email... but it will be nice to be able to when I'm doing GITAP and on the bike for a week. Battery life isn't so great -- but lots better now that one of my students showed me the "kill the battery sucking automatic update apps" app.