3 ms·My phone is a HUD for my hand.by waterlesscloud 14y agoMy phone is a HUD for my hand.SeanLuke 14y agoA HUD is transparent.talmir 14y agoIf you are thinking HUD like we see in games then transparency is a relatively recent thing. If you look further back HUDs used to be opaque. The words "Heads Up Display" says nothing about it having to be transparent :)