That inductive-charging backplate for the HTC Thunderbolt just hit the FCC, which means keeping the battery-devouring device juiced is about to get a little less inconvenient. Instead of having to plug in three times a day just to keep that LTE radio happy you'll simply be able to rest it on a charging mat... three times a day. The part made a brief appearance in the Verizon shop for $39, but the rumored April release date came and went without so much as a peep from Big Red. While we still can't say for sure when it will land, at least we know it's coming sooner rather than later -- and we've got one less reason to reconsider that pocket-busting extended battery.