The problem with laptop trackpads: they're usually not very good. But would turning the touchpad into a mouse solve the problem? Perhaps. That's what MSI seems to be attempting with its MouseBook concept. In essence, it's a laptop with a trackpad that can pop out and then be used as a standalone mouse. As you can see in the photo above, there's a release switch for removing the pad. Once it's out, you can move it across your desk as you would a mouse, as opposed to just using it as an external trackpad. It connects over Bluetooth and, as you'd expect, it recharges when it's inside the laptop. What we find most intriguing, perhaps, is the fact that when you remove the trackpad, a flat surface rises up to fill the space so that you're not left with a gaping hole in your palm rest. Since this is just an experiment at this point, MSI can't say if it will ever make its way into a real product. If you're curious, though, we've got a walkthrough video after the break, showing everything except, uh, how it works -- MSI still doesn't have a fully functioning unit to show off.