This is one of my top requests. I think you can determine which image is shown according to the vertical size of the image (& maybe the horizontal size plays in too but the vertical size seems most important). But I hate attaching a huge vertical image just to keep my cover image as the one I want. I wish I could simply designate the image I want used for the cover image.
That would be really great.
Thanks, Evernote. You're awesome.