A theory on the difference between iPhone and Android users
virtualpants.com
virtualpants.com
I use both Android and iOS and I never installed an app that crashed my phone or did something bad to my device.
Maybe it helps that I don't download random stuff off the market.
If you use a smartphone you should probably tell if a app is worth downloading or not. If you can't tell, maybe you should use a Nokia 1310.
The simplicity and stability of iOS gives even the most novice users a high level of confidence about computing.