Designed with case compatibility in mind, Belkin's new LiveAction Camera Grip ($50) adds separate photo and video buttons to an iPhone 4/4S or iPod touch: the black plastic accessory connects to the Dock Connector port, and includes a large glossy black shutter button for photos, plus a smaller red button to start and stop video recording when used with Belkin's LiveAction app. While this functionality overlaps somewhat with what was added for…
