Ten One Design has unveiled its new Blue Tiger Stylus. Touted as “the world’s first pressure-sensitive Bluetooth 4.0 stylus for iPad”, the Blue Tiger is supported by the CoreBluetooth framework in iOS 5, and features a color LED button that can display the current paint color; the company is also offering sample hardware and a beta SDK to developers. Notably, current iPad and iPad 2 models do not offer Bluetooth 4.0, so it is likely that sample units will include a dongle, however, the technology was included in the iPhone 4S and is therefore reasonably likely to appear in the next-generation iPad.