BetaNews is reporting that Adobe has announced a 3D version of Acrobat. This will be especially useful for you guys out there working with CAD; now you can send images as .pdf's...

"3D in PDF could go far beyond engineering uses to items like interactive product brochures with 360-degree views. Product documentation could allow a user to zoom in or rotate a diagram to their liking. However, Adobe says the target audience initially would be the architectural, engineering and construction industries."