The "End of 2014" map at teslamotors.com anticipates I-80 Supercharger travel between Northern California and SLT, using Superchargers at Roseville and (I would guess) Lovelock, NV, Elko NV and Toole, UT. Trouble is, going from Roseville to Lovelock would be a real stretch in an 85, especially eastbound/uphill, and impossible in a 60. Same for Elko to Toole. What that route would need, and what the Supercharger map doesn't show, is a Supercharger at Truckee or Reno, and another at Wendover NV/UT. Wendover isn't much, but if TM can put a Supercharger in Primm, NV (recently reinstated as a coming-soon location) they can put one in Wendover.