[Excalibur]

Well, what are you looking at?                    What it says.

[Ghostavo]

Only to a certain extent. It helps develop finger dexterity, but as soon as you reach a certain "level", it's starts not paying off. The reason for this is that while finger dexterity is good for both, you reach a certain point where to increase your ability in one or the other, you have to develop a feeling for the keyboard. That is muscle memory for where the keys are. And since we don't play piano in QWERTY keyboards and write in piano keyboards...

[Excalibur]

...mmm. That would be interesting...