Newsbrief: German optics manufacturer Carl Zeiss is the latest company to jump on the virtual reality headset bandwagon, although the company is focusing on providing a headset that is more open than the competition. The VR One works much like Samsung's own Gear VR, except that it will apparently be able to accommodate any iPhone or Android smartphone that can a screen size between 4.7 and 5.2 inches. Users will be required to purchase the correct containers to fit their appropriate smartphone devices, such that they can slot the device into the VR One. Right now, only drawers for the iPhone 6 and Samsung Galaxy S5 are available. The Unity3D-based SDK is also available for free to developers, as Carl Zeiss hopes devs will come on-board and release VR games for the device. The VR One is due out in December for $99.