Here is a source I've found on the efficacy of liposomal delivery:
http://deepblue.lib.umich.edu/bitstream/handle/2027.42/26515/0000053.pdf
Here is another more recent one that would support the increased delivery at least of CoQ10 and Melatonin:
http://www.sciencedirect.com/science/article/pii/S0924224401000449
It is a good increase of at least 2x for melatonin.
No because the mechanism by which the preferential uptake for certain cell types is completely due to the antibodies they put on these liposomes. If liposomes were universally great at getting into cells, they would be flooding normal human cells with the cancer drugs too.
I'm not saying regular liposomes don't do what you say they do, just that source doesn't really apply to increased bioavailability to all cells.
As for that video, I know licensed doctors that sell those magnetic bracelets - I won't take just any random Dr. Wackoff's word for it on a given medical matter. Also, this was in the comments of the video, from apparently a supporter:
If this was the real deal, I'd expect some peer reviewed literature at least on the delivery technique - this would be big for delivery of a lot of vitamins and would be highly profitable so I doubt it would be ignored. They could probably sell it for a $30/30 doses the way they do with liquid glucosamine/chondroitin.
I looked more into Donsbach - got to here from his wikipedia page:
http://www.quackwatch.org/01QuackeryRelatedTopics/donsbach.html
I would be very hesitant to follow anything he suggests.