Here's how you can quickly type with the caps lock on in iOS.
1. Double tap the shift key.
2. This will turn on caps lock on your iOS device.
3. Tap the shift key again to get back to lower case typing.
But as with any device, there are tips and tricks and shortcuts that can help you get more from your iDevice investment. Here, in no particular order, I'm going to rattle through a list of tip and tricks that will help you be more productive when using your iPad and iPhone, whether you use it for work or play.More at ZDNet
Additional resources for iOS