I actually did a little experiment with myself last year where I went a week without using a smartphone. I used a regular flip phone that didn't even have internet capability. It was an enlightening experience. I thought for sure that I would find that I don't need a smartphone, but that wasn't the case. The first few days I was going through withdrawals. After that Rita was just plain frustrating. I couldn't get emails in the go. I found myself in situations where I needed to do an internet search for something on the go and couldn't. There were several situations where I needed to use GPS ans didn't have it. I actually had to call places and ask for directions which was tedious. I didn't have my calendar on me at all times so I felt disorganized. Task lists, social networking, RSS, podcasts, music, e-reader, camera were all things that I needed and didn't have. But the most frustrating was the messaging. Typing on a regular dial pad was excruciating. I actually got so frustrated with texting and emailing that I ended up making a ton of calls instead. My smartphone is necessary because I use it to keep my life organized, convenient, efficient, and engaging.