I just got my son's gently used Droid X, and we rooted it and installed the Droid 2 Bootstrap Recovery. All is well. But at some point since that time I somehow acquired a 6.6MB file in the SD card's download folder. It is named "download.apk". I don't know what this is, or whether I need to hang onto it. Can someone shed some light on it for me? I have downloaded and installed some market apps. But I don't recognize that file.