If I can't get N900 cheaper than 699,-, I'll wait for "N910" to have SDXC card support and Maemo 6. It's like buying now a notebook without Express Card to upgrade to USB 3.0. I can't replace every year a phone and a notebook to sell it for half the price, because I need more space and/or faster ports. With USB 3.0 und SDXC at the door, it's imho a bad time to buy something without this items. Look back SD -> SDHC and USB 1.1 -> 2.0
For the new SDHC high capacity card (2.0) implementation, 22 bits of the identification string are used to indicate the memory size in increments of 512 KBytes. Currently 16 of the 22 bits are allowed to be used, giving a maximum size of 32 GB. All SDHC 4-GB and larger cards must be 2.0 implementations. Two bits that were previously reserved and fixed at 0 are now used for identifying the type of card, 0=standard, 1=HC, 2=reserved, 3=reserved. Non-HC devices are not programmed to read this code and therefore cannot correctly read the identification of the card.