EAC has a similar but different feature. It will let you queue up the WAV to be encoded while it continues to rip, ie track 1 will rip, start encoding, track 2 will rip, track 3 will rip, track 1 finishes encoding, track 2 starts encoding and so on.
So if you can rip faster that your CPU encodes you build up quite a queue of WAVs to encode.
However given that your ripping is slower then your encoding this is pretty mute.

Works fine for me, I used the AG batch encoding many times because of it's ability to attach the ID3 data to the WAV.