Mystery Tree Continued

A few weeks ago, I posted a picture of a mystery tree in our front yard. Now that tree has fruit -- be it actual edible fruit -- or nuts. I've gotten on a botanical blog site and asked for help in identifying it. Prior to showing this picture, the thing that sounds closest are peach or almond, or a cultivar/cross between the two. Want to put in your guess? When I find out for sure what it is, I'll let you know.