Barcode-related stack?

[Judy Perry]

I could have sworn that the old revOnline had a stack related to barcodes 
in some manner.  But now I can't find it and find the new revOnline pretty 
but regrettably unusable.

I have a former student who now works in our disabilities solutions center 
who wants to do something tying together a barcode scanner (I think) or a 
tablet PC and Rev (which he actually found on his own, having harbored a 
fondness for HC).

If anyone could point me in the right directions I'd be appreciative; if 
it works, I'll bet the nearly locked-in faculty member would be even more 
appreciative :-)

Judy