Am a big fan of the other Runtastic apps but this one doesnt work properly yet. The most annoying thing is how it messes with the volume control on your iPhone- it makes it difficult to change the notification (ringer) volumes from other apps and will sometimes crank the headphone volume when notifications come through. The step counting seems suspect vs a pedometer. It is also pretty hard on the battery.
kaalu about Runtastic Steps - Pedometer, v1.2.1