According to DirecTV's 3rd quarter report, the new NDS DVR that will replace the combo TiVo units will be shipping next week:
DirecTV said it will start shipping its own digital video recorder next week as it transitions from sole reliance on DVRs made by TiVo Inc. The new recorders use software from NDS Group Ltd., another company owned by News Corp.
Another interesting tidbit is plans to show off TiVo ToGo-type functionality at CES this January:
Carey also said the company would introduce new products at the Consumer Electronics Show in January that would allow programming to be viewed on portable devices. The company main's competitor, EchoStar Communications Corp., introduced a portable media player last month that works in conjunction with its Dish Network satellite TV service.
No word on whether the new NDS unit supports HD signals (I'm assuming it does not). [thanks davis]