I cut and transport all my wood in 7 foot chunks. Doing this makes it easy to use the tractor to do all the lifting (with fork tines on the loader). So they are cut to 7 in the woods, lifted with the tractor, hauled with the tractor or loaded and hauled with a trailer to the "processing area", then cut three times with chainsaw to about 21 inches final length. I have been thinking that it would be IDEAL to bring those 7 footers to a device like you guys are discussing here. I would want the "accumulator table" to allow me to chainsaw the pcs setting in it to final length. So, I'd unload them from the trailer with the loader, and place them on the table, then cut to them to length, then slide them along on the table to the splitter, with no lifting so far in the whole process.
After the splitting, they fall on a concrete slab in front of my old wood storage barn, and I use the loader again, to slide all the pcs into the barn under cover, still no lifting. The wood is not stacked in the barn, just piled (plenty of room). Eventually I go and get it with the loader bucket and dump it next to the burner.
I'd be tempted to put some kind of chaindrive or hydraulic pusher system in the table. The investment in time to automate this seems like time well spent. Kinda like a poor man's processor.