The Presenter is not yet available for purchase. Once it does become available, it will cost $199 at ShopBlackBerry.com and at select authorized dealers and retail stores. The device works on BlackBerry handsets running OS 4.6 or higher. It will not work on the Curve 8330 series or on the Pearl Flip. While other smartphones continue to bolster consumer related applications, leave it to RIM to offer an accessory that is made for the businessman on the go and strengthen the ties that make BlackBerry a unique handset for the business world.