Can I share my flash cards with people who don't own Mental Case, or even use a Mac?

Yes. Mental Case allows you to export your flash cards in a variety of formats. You can use CSV format to export text notes for use in other applications (eg spreadsheets). You can also export your flash cards as images (eg JPEG, PNG), or use the print-to-file functionality of Mac OS X to generate a PDF document. If you export notes in Study Archive format, you can upload the file to a file sharing site like [DropBox[(http://www.dropbox.com/), and allow users of Mental Case for iOS to import them.