The whole paper is of.....what a system should be capable of....there's no real information given.

They give a little detail of their boot block NOR....and it's ability to eliminate RAM on bootup...however, they do not discuss RAM requirements necessary for user file manipulation, where most of the power is eaten up...e.Digital does it through a patented cache management scheme,  sized to the read write block.

"XiP systems execute code directly from flash without having to copy the code into RAM (as shown in Figure 8). The XiP model reduces the amount of system RAM required and
decreases system startup time."

I do note this....lol

"Optimization Methods
While techniques vary, most high performing file systems use
the following techniques among others for optimal
performance:

• Caching schemes to minimize the number of flash vs.
RAM accesses"

IMO...they are referencing e.Digital here....nice that such a feature is noted by them as a technique of a high performing system.

"A converged device such as a smart phone with multi-media
capabilities is a good example of the challenging use case
scenarios for file system performance. Files range in size from
small critical system files to large multi-media files. The
frequency of updates in these files also has a similar range in
variability.
A flash file system needs to be optimized for all of these file
types and use cases – providing multi-media read/write
performance and at the same time maximizing the use of
space for small system files."

ALL COVERED.....

As for a system with a complete set of attributes..... necessary or should have....
e.Digital has...for both NOR and NAND.

With that, the system is modular.

e.Digital fits their wish list
doni