A Bluetooth Keyboard With a Backup Battery or Vice Versa?

In a "which came first, the chicken or the egg?" type paradox, this multifunctional smartphone accessory has mysterious origins. Did someone slap a backup battery on a mediocre Bluetooth keyboard as a redeeming feature, or was a Bluetooth keyboard added to a backup battery for added value and more incentive to carry… » 8/29/12 10:19am 8/29/12 10:19am