EasyBib recently released a free iPhone and iPad application. Probably the neatest aspect of the EasyBib app is that users can scan a book's or magazine's ISBN barcode to record the information necessary to create a proper citation. Users can add citations on the app and email those citations to themselves from the app. Just as if you were using the EasyBib website to create properly formatted citations, the app will generate MLA format citations for free. If you want to generate citations in APA or Chicago style you will have to pay for a subscription to the service.
Learn more about the new EasyBib iOS app in the video below.
Applications for Education
I like the promise of the barcode scanning aspect of the app. If it works as promised, it could be a great tool for students to use to make sure they've gotten all the information they need about a they've borrowed from a library before returning it.
If you have never tried EasyBib, it's very popular with the students at my school, here is a brief video introduction to it.