I recently upgraded to premium so that I could have the business card scanning functionality. I have no trouble grabbing the info from the business card via the mobile app. However, a major draw for me was the "notes" field so that I could add in information about our meeting or shared projects. None of my scanned business cards are editable in the desktop app. All are locked. The error says "sorry, you can only edit the title of this note because it was created in another app." I used the Evernote app...
It appears I can add notes still to the business card via the Evernote app but it would be much preferable to be able to use the Desktop app or browser app, as I am currently using, to be able to type in more details. My preference would be to have a keyboard and easier browsing and copy/paste feature of a desktop!