As a lot of you are aware of ATT Android phones can only install Market Apps over the air. There is a way to side load other apps while connected to a PC but that doesnt help my cause much. My companies customers need to install our app over the air. We prefer not to use the market because our app syncs back to our network. We dont want the possibility of hackers breaking our code and then opening up our network to attacks. I have tried some hacks that can turn this setting on in the devices, but it requires rooting which of course can void warranties and the exploits used could be patched in the future. I would like to know if there is any way around ATT's limitation so that we can enable the non market apps without rooting the device first. If thats not possible, then the 2nd alternative is to find a way to "hide" our app on the market so that it can only be found with a direct hyperlink to it. Probably not possible either but I have to ask. If anyone has any other alternatives for installing non market apps on ATT Android phones over the air, then please let me know. Thanks!