I ordered a Zenith Mk3 from a dealer outside of Boston 2 1/2 weeks ago. I asked them what the delivery time was and they said a week but it is not in yet. While there I asked about the reclocker and they said they had one on order. Given that and the fact that @audiotroy said he would give an update as soon as he got his (on 1/3) I'd agree on the speculation that they are running into supply or manufacturing issues.
