We knew the White House was on board with the FCC's desire to free up an additional 500MHz worth of spectrum over the next decade from private and federal holders, as announced last year, and now Obama has announced the plan to do it. The plan is to incentivize the current spectrum squatters with a share of the revenue gained from auctioning off the spectrum -- mostly for mobile broadband use -- which only seems fair, and for now it seems those auctions will be voluntary. But that's just the tip of the iceberg, the plan also includes a $5 billion investment in constructing 4G networks in rural areas (with a goal to r