[youtube]http://www.youtube.com/watch?v=qSjogECCTec[/youtube]

APPS REVIEWED:
The Wheel HD
http://itunes.apple.com/us/app/the-wheel-hd/id418797063?mt=8
iPad formatted, replicates the traditional wheel, but allows for drop-down field entry

Pregnancy Wheel HD
http://itunes.apple.com/us/app/pregnancy-wheel-hd-due-date/id405043249?mt=8
iPad formatted, full replication of traditional wheel, no option to enter in dates via drop-down

Perfect OB Wheel
http://itunes.apple.com/us/app/perfect-ob-wheel/id293656711?mt=8
iPhone-native app, one of the better formatted, no wheel, allows for drop-down entry of dates.

Pregnancy Wheel+
http://itunes.apple.com/us/app/pregnancy-wheel+/id451012206?mt=8
Similar to the above app – no wheel, but allows for drop-down entry of dates.

Pregnancy Wheel
http://itunes.apple.com/us/app/pregnancy-wheel/id366140272?mt=8
iPhone-native app – difficult to get an exact date as you can only manipulate the wheel.