from what little I have comprehended of what little I have read on the subject, the following is the (quite possibly incorrect impression of) property of entanglement which interests me:
2 entangled particles, separated by significant distance.
perturb one of the particles, and the other particle instantly undergoes the same perturbation.
if this is so, one can consider one state of perturbation a zero, and another state a one, thus creating a binary communicator allowing instantaneous -if absurdly simple- data transfer irrespective of distance.
again assuming all the above, and assuming the number of entangled particles can be jacked up to something more useful, then REAL instant datacomm is possible. the applications would of course include controlling long-range unmanned recon on Earth and (more importantly) in space... no more long waiting periods between command, execution, and reply - it'd become similar to actually being there in real-time, more like controlling an RC car on your lawn.
That'd be damn nifty... if it is indeed possible