Griffin Technology has announced two new iPhone accessories at Apple Expo Paris. The AirCurve for iPhone and iPhone 3G is a unique clear polycarbonate acoustic amplifier designed to provide more powerful sound from the iPhone’s built-in speaker without the need for added electronics. It uses a coiled waveguide within its base, which can be plainly seen thanks to its clear construction, to amplify the sound, and also offers a pass-though slot to allow for charging and syncing of the iPhone while docked. It will sell for $20. Griffin also introduced the Clarifi for iPhone 3G, a new polycarbonate case featuring a built-in sliding close-up lens that enhances the macro and close-up functionality of the iPhone 3G’s built-in camera, allowing users to shoot crisp images from as little as four inches away from the subject. Other features include open access to all ports and controls, Griffin’s EasyDock slide-off bottom for docking, and a two-tone design. It will sell for $35. Both the Griffin AirCurve and Clarifi will be available in October.