it jumped to 4.5c on Monday, fell back to 3.3c on Tuesday, now back to 4.4c...
I have a hunch a deal with NST will come soon utilising PSY's sensors... as I think senator mentioned recently, a possible reason for the delay could be due to NST getting ERJ to increase their power requirements, therefore postponing PSY announcing something. just one of many possibilities.
perhaps if PSY gave us an update we wouldn't need to speculate
