Bluetooth cubes still have a ways to go before they're physically good enough and also affordable enough to replace regular cubes, but they will solve this issue. CubeDesk already supports a few types of BT cubes. When you use a BT cube on CubeDesk, you get a breakdown of every stage, turns per second, areas you paused, etc.
The unfortunate thing about BT cubes is that all the companies making them have their own proprietary software that they want their customers to use, so they encode the data coming from the cube to make it really hard for anyone to make sense of it. Some of us in the cubing dev world have reversed engineered these techniques, but it's just unfortunate how they try to keep it a secret.
Then I opened the answer key (HN comments) and found this thread. Shouldn't you make it easier to find documentation before signing up?