This has never been a priority with Synergistic and based on pressure on many fronts to be compatible and other enhancement priorities, I doubt it will be. I don't believe any solution provider or JobOps consultant would disagree that Synergistic does not have the resources to address many key needs, and they are not going to invest any more in this.
I have made many attempts to find a buyer for the package, but either they want too much or the potential does not calculate. I'm sure it's some of both.
The closest we have so far to multi-bin is the integration of the Innovative Consulting Services WMS software at a JobOps client of ours. The WMS has multi-bin capabilities that are in a table outside the main tables and accessed well on the handhelds. The final integration that requires some minor programming on the part of Synergistic has not occurred, so this is not yet a solution.