It's not on the street, yet, but Caterpillar has announced Cat COMMAND for Compaction. It is an operator assisted technology that will help the operator achieve consistent compaction. The best news it that will be available on new B-series compactors AND as a retrofit kit for those already in the field. To learn more here is Caterpillar's press release.
Komatsu has added broader capability to their machine control line with Proactive Dozing Control (PDC) on their Smart Construction "i" machines. PDC uses the sensors and GPS system traditionally utilized for machine control to monitor the dozer's position in real time. The system will automatically control blade position and adjust load during any part of the earth moving process, not just at finish grade.