Standard Geo-Spatial Format for R

Hello.

 I have a plan to create R interface Package for Refraction's "nice" GOES.

 In doing this, I'd like to know there's any plan to make Standard
Geo-Spatial Objects Format for R geo-space communities? Because current
available R's map packages' formats seems to be various and each
independent, so passing data will require to create each  export function
among packages.

 Does anyone know?

 Regards.