The surface Pro has a USb 3.0 port so just get a Drive that has USB 3.0. For the Projector, if your projector uses VGA then get a USB 3.0 to vga adapter and if it is DVI-D/I then get a USB 3.0 to that. There might be an app for calling and texting on windows 8, but the only thing can think of is Skype. And as far as I can tell the Surface Pro does not have a 4G/3G radio inside.