Number of unique devices = 762
Number of visits = 14872

OS version:

3.0 => 8
3.1 => 4
3.1.1 => 1
3.1.2 => 86
3.1.3 => 628
3.2 => 28
4.0 => 3

Device type:
iPhone => 637
iPad => 28
iPod Touch => 97