Presenter Pro is a presenter skills mobile app that you can download from the iTunes store. Presenter Pro features hundreds of quick presentation tips, xxercises to practice skills and knowledge check quizzes to help remember the information.
LRNtheLingo is an iPhone / iPod touch app that defines and explains texting codes, emoticons, and common slang terms and offers full search capabilities.
Classics2Go, an example of the KiwiTech Classique reader, offers a selection of books in th epublic domain and has been hailed as one of the top 10 book applications in Incredible iPhone Applications for Dummies.
Is anyone still using diigo? Well if you are, congrats, you can read this blog about how you can log into Google with more than one Google account. It's still in the works but seems pretty useful.
I use this at home with my personal account and Google Apps. Need to do the same at work. NOTE - your personal account needs to be the primary and then you can switch to your Apos account. I have had no success the other way around.