Here's what will make me use this: Keyboard shortcuts for everything, including text-styling when composing a message. I want to be able to use 100% of GMail's

Here's what will make me use this: Keyboard shortcuts for everything, including text-styling when composing a message. I want to be able to use 100% of GMail's functionality without ever touching the mouse. If your product would do that, and work well and not have any big issues, I'd pay $50 for it.