Accessory maker Satechi has announced the BT Smart Trigger, an iOS-controlled Bluetooth 4.0 shutter release for Canon DSLRs. It features multiple shooting modes including timelapse and long exposures, via the free Smart Trigger app. The trigger has a claimed battery life of up to 10 years and range of 50 feet. It is currently available for an introductory price of $ 44.99. An Android-compatible version will be available from March 2013.
News: Digital Photography Review (dpreview.com)