Hmm, I suspect you are right, thank you for the feedback. I think my customers will be business owners with some technical expertise (you need to at least understand what a transparent PNG is, and be able to paste it on your background), but I don't want to discourage end customers. I need to think about enabling map creation without accounts. I am requiring accounts now because you'll have to design a theme before you make your map (star colors, labels, fonts, etc) and I am assuming you'll want that to be saved. But I could make it optional...