iRhino 3D for your iPad, iPhone or iPod touch

Link via iRhino3D.com

On the iPad, iPhone, iPod touch

There is nothing like showing your designs and ideas in 3-D. Pan, zoom, and rotate with a tap or drag of your finger. The handy navigator lets you scroll through thumbnails, so you can quickly jump to any model you want. Load Rhino models from web sites, Google Docs, email attachments (iPad only), or from iTunes (iPad only). Save views as images for markup and emailing.