LightSquared may have steadfastly insisted otherwise, but recent tests showing that its wholesale 4G LTE network interferes with GPS have been getting tough for it to ignore, and it turns out the company has been quietly working on a backup plan. In addition to fessing up that one of the 10MHz blocks used by its network does indeed interfere with many GPS receivers, LightSquared has also now announced a two-fold "solution" to the problem. That wi