One can always ponder...
WHAT IF someone devoted their precious time and money to develop a Super Duper Awesome Upgraded Memory Device?
WHAT IF it could magically bank switch on it's own to appear to be one large easy to use memory for users.
WHAT IF you could afford to buy one.
You have to realize...
"Someone" would have to write the huge programs to run on a new device that hardly anyone owns, that's a hard sell.
Without software to use it, what's the point of purchasing one?
Lots of people already own a SAMS. I don't know about others, but I'm not about to rip out my SAMS just to replace it with something that could take YEARS to be usable.
Current alternative...
If someone did have a killer application or game idea, the currently popular and available FinalGROM could be utilized to house such a program.
My opinion...
I looked forward to new toys for my TI like the TIPI and FinalGROM, because they play nice with existing hardware and software and didn't make things I have incompatible. Even if something magically appeared tomorrow, I truly doubt I would buy one as I would have no current use for it. I'm sticking with the SAMS card, as even now things are starting to trickle out and use it.