I believe what you are referring to is Small Diameter Bombs (SDB).
The Ground Launched SDB has already been developed and tested by Boeing and SAAB. However, the GLSDB is a product in search of a customer.
Below is a link to a marketing video by SAAB.
https://www.saab.com/products/ground-launched-small-diameter-bomb-glsdb
No, I distictly recall it was JDAMS. Again, it may have been pie-in-the-sky thinking (lots of that going around).
Search did not turn up much on the fly, but this one is kind of interesting:
I can easily believe the JDOMs conversion to ground-to-ground weapons is nonsense. There were also reports refuting the reports this was possible and being done.
I hate fly consider myself myself a munitions expert. And so I am leery of all these reports.