First it was a mystery. Then it was the 14th of February. After that, it was indeterminately postponed. And now, Android Central is reporting that the Thunderbolt will finally launch on February 24th.
This lines up perfectly with Droid Life's earlier speculations, though of course, it's always possible that Verizon will push the date back yet again. Because, you know, it's not like anyone is eagerly awaiting the carrier's first 4G phone or anything.