AFAIK (and i'm no expert, so grain-of-salt):

1. yes, yes
2. yes
3. no, dunno
4. yes
5. no
6. yes, no

:-)

- actually, the limits you're asking about can generally be found by examining manufacturer information, industry information relating to standards, and current limitations for manufacturing fabs...

- obviously everyone want a TB in a pocket for US$1, but by the time that capability becomes reality, the base hardware and die standards will have radically changed...

(i predict cables and connectors will soon be gone for mass-market devices, replaced by wireless connectivity - it's happening already)

- right now for consumer purchase, 32GB for SDHC with 8GB for microSDHC (soon 12GB, IIRC) are what you're looking at if money is no object... my NIT purchase was based on the two-slot SDHC capability of the n800 platform and the 'sweet spot' of 16GB SDHC cards... by the time microSDHC is up to 32GB the N810 won't be available for purchase anymore and my N800 well-worn and ready for replacement with a newer NIT...

- IOW, an n800 or n810 won't last forever and is a disposable item...

- so the upshot is: 14GB total storage for the n810 assuming a 12GB SHDC by next month? (one can always attach a thumb-, HD, or optical drive for more storage)

- more info on SD/SDHC here:

http://en.wikipedia.org/wiki/Secure_Digital_card

hth!