[Q] Custom Key/Button Mapping ideas

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Sorry for cross posting but I figured this is a relevant here as it is in the Vibrant section and not everyone from here checks there and vice versa.

I come from a G1 where the Dialer, the End Call, and the Camera all had dedicated buttons. I feel like the Captivate would be so much better if it had these. I'd like to develop an app or simply code something myself that we could flash as an update but I don't know where to start as I am not a developer though I wish I could be.

Pretty much this is how I would map everything:

Menu: Menu
(Long Press) = Dialer

Home: Home Screen
(Long Press) = Recent Applications

Back: Back
(Long Press) = End Call if making a call/Sleep if not in a call (Could possibly be Voice Search)

Search: Search Function
(Long Press) = End Call if making a call/Sleep if not in a call (Could possibly be Voice Search)

Power Button: Camera
(Long Press) = Power Options (Silent, Power Off, Reboot)

Note: If this is in the wrong section, I apologize and please move it. If you are a developer and like my idea, please to get to me as I'd like to work on it as a project. We could possibly sell it on the market and provide it for free for the people her on xda development.

You can edit the softkey functions in /system/usr/keylayout/melfas-touchkey.kl.
Just not long presses, those are handled by the kernel I believe.