Why Are iPhone Owners So Satisified and Sony Ericsson Owners Grumpy?

Apple Soars Behind iPhone 3GS Momentum

…contains a lot of interesting information and charts beyond its title’s focus (the iPhone). I found the ChangeWave Research chart titled Cell Phone Satisfaction Rating – By Manufacturer particularly interesting. I’ve never heard of ChangeWave. So, I don’t know the quality of their survey work and analytic abilities. However, it looks like they had a pretty good sample size for their survey (4,255 consumers). There is the question of how this sample was stratified and the other usual information never reported by the press.