I35 - Won't accelerate (weird problem)

[osu9400]

Here's a very strange one. What do you think of this?

2002 I35, 190,000 miles.
- Has been running great until late yesterday when I pulled into my driveway and the car wouldn't accelerate.
- When the car is in P or N the engine will rev as expected.
- When it is one of the Drive or Reverse gears, it moves at idle pace only. When I press the accelerator, the engine won't even rev.

I have never never of such a thing. What is going on here?

[audtatious]

Go by a autoparts place and have them pull any codes that are stored in the ECU. Could be the TCM or transmission itself.