Waterloo-based Thalmic Labs is working on getting the MYO armband into the waiting arms of pre-order customers, which now number well above the 25,000 announced in March, Thalmic told me, making up over $4 million in total sales to date. MYO is a unique control device worn around the forearm, which measures muscle movement and electrical impulses and translates those into a control mechanism for various devies over Bluetooth.