Reading some things more slowly:
Windows XP works with 64-bits.
Ah, yes. ::) This is a statement I would expect from a Joe Average User, but not from a serious IT company. BTW, the system properties dialog says it is windows xp version 2002, again, not the so-called 'x64'.
Nowhere in the paper I can find anything about the implemented processor architecture. If it is compliant to x86(-64), they would have stated this. If not, especially then they would have stated it.
And why to hell should the storage appliances be attached to ATA interfaces? If their RAM is non-volatile (as they claim) and unused parts can be used as storage - why do we need seperate storage then?
RAM department - 200pin SODIMM. Counter statement: one word is 4x64bits. 4*64 = 256. So with address and handshake lines we would need more than 300 pins, or did I miss something in today's developments? Memory bus compression

? Wireless memory bus ;D?
Don't know - even when the subject (the device) is not a hoax - the website definitely is.
cheers Joe