iFilemonger is a web viewer for design and 3D files. It is based on the filemonger.com service and it is available as an app for your iPad/iPhone/iPod. Just browse to a file or a ZIP archive on the web, and you will be able to view and interactively rotate, zoom or move the objects in the file. You can additionally view files uploaded to the device, files from other Document Provider apps or files sent via email.
Currently supported formats include DXF drawings, IGES assemblies, STL/3D printing models, OBJ files and their textures, Gerber PCB designs, VRML worlds and TIFF images among others.