Ok first downside (which isn't that bad) is that once you get your sena case its abit tight for the iphone 3g. To fix this problem I put my Creative Zen Vision:M 30gb mp3 player to stretch the leather out and let it sit there inside the leather case for 2 hours(you could also use your ipod or something similar in size just abit thicker in depth to stretch the case). Now your iphone 3g could easily come out of the case with no hassle.