iDevice Wise is a new jailbreak tweak on Cydia that lets you know every simple and complex spec about your iOS device from hardware to software. There are more than 50 pieces of information that are well arranged in groups and are displayed in a preferences bundle inside the default Settings app to make it very easy to read. iNasser, the developer of the tweak notes that he will be adding even more information in the next updates.
If you think iDevice Wise is a tweak that you would want to try, head on over to Cydia right now and download it for $1.99 from the BigBoss repository. The tweak supports all iOS devices running all iOS versions.
Be sure to share your thoughts about this tweak in the comments.