Yamaha has unveiled its new PDX-11 portable speaker for the iPhone and iPod. The PDX-11 features a rugged, octagon-shaped body, with a top-mounted dock and metal handle, a two-way speaker setup with a four-inch woofer and a dedicated tweeter, an included remote, the ability to run off AC power or six AA alkaline batteries, and a 3.5mm stereo input jack. Yamaha’s PDX-11 portable speaker for the iPhone and iPod is available now in white, dark blue, green, or black, and sells for $100.