Actually for an all-in-one travel device the iPhone isn't such a daft idea; its adequate for occasional email, web, skype, etc. and backs up photos it takes to the web. I'd love a smartphone but the fact is I'm too cheap to pay the data rates (times four because the rest of the fam wouldn't accept me having one while they're stuck with SMS!). And the one day battery life would drive me nuts for living with here.
When I go on vacation I try to leave as much of my life behind as possible but I've found my original Asus EEE 4G netbook is handy for staying in touch, web and backing up pictures from the camera onto a suitably large SD card. (Although it doesn't have enough RAM to display the 7MP NEFS that the D70 takes.)
The X10 is very appealing for a travel camera: Fast camera, fast lens, workable viewfinder, Velvia colors, looks like a polarizer can be attached, reasonable price. Hopefully the small sensor really is up to it and the raw images can be processed by iPhoto to fix the white balance, occasionally make a good picture better and even salvage the odd junker.
To clarify what I'm looking for here, I'm definitely not a serious landscape photographer and I'm not willing to devote the time to getting up early, waiting for the right light, carrying a tripod, that all go into great landscapes as much as the composition, which I'm not too patient at either.
When I'm taking pictures I'm more opportunistic and simply try to capture the scene as best I can with whatever (usually too much or too little) light is on hand and I enjoy doing it. If I could get the same results as the D70 with a camera that is nice to use but significantly smaller I'd probably be happy. That's probably good reason enough to buy the X10.
The EP3, GH2, GX1 and NEX7 are also very tempting for bigger sensors and choice of lenses albeit with a correspondingly bigger price tag. The biggest draw here would be for a trip where I could take a longer 200mm or so lens that works with the same compact setup that gets used all the time.
(Wondering aloud whether the Nikkor MF 135mm f2.8 I have at home somewhere would be practical to focus?)
I'm also wondering what else will emerge in the next few months. There is way more choice here than I expected which is a high class problem.
Thanks for all the advice, ideas and questions, folks. Please keep them coming!