My Customized openscad iPhone 4 wall mount dock it is a little bigger so it will fit with a case.

thingiverse

A personalized version of http://www.thingiverse.com/thing:10270 was created using the Customizer! (http://www.thingiverse.com/apps/customizer/run?thing_id=10270). To print this design, consider these options: button_cutout_radius = 8, screw_height = 20, phone_depth = 20, button_height = 10, dock_connector_height = 9, screw_diameter = 4, screw_countersink_depth = 3, phone_width = 71, extra = 0.1, dock_connector_width = 27, dock_connector_thickness = 6.5, usb_connector_height = 20, pocket_height = 40, circle_precision = 0.1, screw_countersink_size = 3, wall_thickness = 4. Follow these settings to ensure a successful print of this customized phone case holder.