Vex Encoder

[lemiant]

The vex 393 motor encoder (for the FRC legal motor) appears to be out of stock: http://www.vexrobotics.com/276-1321.html
Anybody have any idea when they'll be back? As a side note, does anybody here know if you can read that encoder to the cRIO easily?
Are there alternative servos which would be legal under the FRC rules. We're especially looking for something which can keep track of it's absolute shaft position from 0-360 even as it rotates multiple times. A vex motor + encoder fit the bill for that, although we would have to ensure it was correctly positioned at power on because of the relative nature of an encoder.

- Alex