so it's not realy useable
it worth a thousand memory card for travellers; too much usefull!
i will be travelling. i can easily carry on an iPod and my D80. Bringing a laptop on hard outside trekking is obviously out of question. so I bought 2X1Go SD card and the iPod photo connector. at the end of the day, I only need to plug the iPod and the Nikon togheter and go making lunch. I don't care to wait several minutes; the next morning, I will have my photo on the iPod and my SD card ready for the next day shooting.
but it takes forever
it's the smallest 20Go or 60Go harddisk you can handle while travelling. at this point, I will not expect this technology to be faster than what it is. but if you want the transfert to go faster, it will only depends of the size of the pictures you are taking. RAW photo will be way too long for this kind of connection but Fine-JPG is quite acceptable.
if your need is a fast transfert, used a more compressed jpg format. there is a tradeoff that should suit your needs.
besides, is there any other solution than buying several SD cards if you cannot aford to bring a laptop on your trekking?