I have downloaded installer apps that allow me to install and use downloaded apps like better keyboard and open home. i have them on my phone but when i use an installer app to install it, a box appears which makes me select an option to download it with. package installer (default and only option i have) says they are from an "unidentified" source and wont let me install and use them. this is annoying because i want these apps FREE and i thought this would work. I am doing this on the backflip and i only have an iMac. Any suggestions? A problem solver or a new method will be fine.