my wife has had a Galaxy S 1 phone for 18 months and all of a sudden the new yahoo mail app now automatically downloads emails in the background. Great right? Yes being able to see emails and not wait for them to download is nice, but i am frugal and only have the 200 MB plan so this app is quickly eating up our data plan. I cannot find a way to turn off auto download in the app. Is there another way to do it in Android or force it to only download over WiFi?