Does it work on the eris? I have the moto droid and my girl has the eris. I was trying to get latitude to work on her eris, but when you click menu when in google maps and you hit latitude, nothing happens. All the other icons works, e.g. when I tap my location it takes me to the current location on google maps. I even tried downloading google maps again and setting up latitude and requesting her to join latitude but it says 'i already have latitude - launch it' which again, doesn't work.