A press release posted by Cellpup says:

Cellpup (www.cellpup.com) announced a new system to allow teachers and students to easily create electronic flashcards on the Cellpup Web site, download them to their phones, and share them with their classes and study groups.

Cellpup flashcard decks feature both multiple choice quiz and flip card modes and are easy to create and download to Web and Java-enabled cell phones from the Cellpup Web site, www.cellpup.com. Students and teachers can return to the site any time to edit, re-download, and share their decks—all for free.