Back in 1992-93 I was Director of Marketing at a local music distributor here in Montreal. At that time we found a product called "The StringMaster" which looked like your typical 1/4" electric drill. The thing was battery operated and actually TURNED the guitar's tuning pegs until the string got in tune. On the handle was a series of yellow and green lights that flashed telling you when the string was in tune.
Seeing The StringMaster in operation at a trade show was impressive and your first thought might be, "Hey, this will be great for a kid who is just learning to play," In practice, the device never really took off...
I think players realize that tuning is as much a part of working with a guitar as is playing. It will be interesting to see what Gibson has come up with.
On the subject of studio tricks you can check out "Melodyne" software by Celemony. The product checks to see if your vocal is on key and corrects it in the recording. Ah Technology, but as I see it. You still need some skill/talent and a good song...
bob