I have the same curiosity for some time about RCs and UX, and until now I haven't found an explanation for it.

I know this has nothing to do with the hard fork itself, but it has to do with the UX.

How will a user know how many RCs s(he) has left? Will tools like steemd (and others) begin to update to reflect the switch from bandwidth to RCs? Anyone can give an ETA for that?

The other curiosity I have. Will Dapps begin to show the cost in RCs of various operations? Especially since the cost can fluctuate.