I was believing the story about the Bionic being delayed due to issues with the RAZR release. But now i'm calling BS, because that doesn't explain why the DROID 4 users are getting soak test invites. Their update should be built around the same base. If the RAZR issues were really the true reason, we should be soak testing soon and the D4 folks should be waiting. But multiple D4 owners are getting soak test invites, so i'm calling BS on Moto and VZW.
I think they are holding back the Bionic OTA simply so that so much time passes that an official JB is out of the question in the future.