I just backed this project https://www.kickstar...in-60-seconds. They also have a guitar version that has already been released.
It would be very cool for some level of integration with Rocksmith. I have not used the product but they indicate that colors are customized so they could be matched to Rocksmith.
There is an SDK for both Android and IOS here: https://github.com/edgetechlabs
From the FAQ:
"All popular (or even marginally popular) songs exist in freely-available MIDI files, so we can display any of the tabs (on Fret Zealot of course) that you find on tablature (tabs) websites. You can also upload or create your own tabs. You can rate each tab so that you and other users can find the best tabs for various songs. We guarantee you will not feel limited by the selection of songs in the app :-)."
I know about exporting RS to Tab tools.
I'm happy to help but I don't have hardware yet.