Not much there for me to comment on, since they don't provide any real specifics.
They said at least a decade away for the first tech. Despite the density, I don't see how they will shrink down the scanning tunneling electron microscope to fit into an iPod
As to the second. I have read claims similar to this in the past, by that I mean molecular sized memory, and have not heard about it since. It has a LONG way to go to prove feasible for commercial use.
However, data storage will continue to fit more info into the same physical container size for quite a while to come. Whether or not this tech. supplants the existing tech., or some radically different tech. is too far out for me to speculate.