If you have 32GB internal flash then 2 SD slots is not as important as for the current devices, for a while at least - but that depends on your needs. But there's not much use in a microSD external slot, because the kind of SD cards I want to put into the external slot are all full size, large capacity SD cards.

The problem in understanding in general seems to be between 1. those who think of the Nokia tablet as an isolated device, where only its "own" needs matter, and 2. those who use the Nokia tablet as a central interchange point for a bunch of other devices. Nokia as a company tends to think the first way (the exception being the lucid folks behind the N800), presumably because they make phones: You install a card, whatever type, and that's it. No interoperability needed. That's fine for some, but not for others. Thus this discussion comes up time and again.

So, the N800 is the IT device I currently own, because of the dual SD full-size slots. I'm very curious about what the RX-51 will have when it arrives.