Below are some links to pages related to iPod Touches and iPads- either with an educational context, or general hints and tips.
Apple Education - Mobile Learning
Apple Learning Interchange - iPod Touch
iEducation App Reviews site - run by Scott Meech
QuestionPress (formerly QuickieQ): An online Quick Question Response System, with specially designed iPod touch interface
Hottest Apps - great collection of short, to the point education app reviews by Apple-Distinguish Educators
iPad Educators Ning - great community featuring a 'ask a question' section
This list is by no means comprehensive. If you have any suggestions, please leave a comment.