Isn't the 3700 the fat one?
It's a little thicker to accomodate the CF card.
Are the the Zaurus, the not-so-supported-and-discontinued Yopy, and mabye a Ipaq with Familliar or the Archos our only choices?
Yes, but as ipotter said, the Z is not supported outside Japan, the same applies to the Yopy (the 3700 is not discontinued) outside Korea, the iPaq is not an option unless you know which machines support Linux, where the get Linux and how to do it, and the Archos.
If the Archos becomes supported too, It also enters the sweet devices domain.
I don't understand what you mean by supported? Supported by whom?
I think people get easily distracted by this support thing, if you have a problem nowadays, you go online, find the right forum or site and sort the problem out. If the machine goes belly up then you return it to the supplier. With the Zaurii I had, I never relied on Sharp for anything, ShirtPocket was where I bought my 860 and they were responsible for fixing/replacing it - how they dealt with Sharp was irrelevant to me as a customer. My 5500 was off eBay, if it died - tough luck. When my first Yopy was playing up, YopyPDA UK were the people I called. In fact, I've never contacted a manufacturer in my life AFAIK regarding any product, only the vendor. i.e. the people who take my money and give me a receipt
2005 is a big year in our house, I've a lifetime of cluttered machines etc and PC's which are all destined for /dev/null. The PC's (finally) go within the month for Mac's and I will be getting the Archos as soon as the price is right. I really like it, the more I read, the more my MythTV setup seems pointless, it will be a household item more than mine personally. The Yopy serves me well. I'm keeping my fingers crossed that ipotters words are prophetic and new machines are on the horizon, I'm optimistic about Linux handhelds in a way I've never been before, they're all good - they're all fantastic and more is to come. I for one think Trolltech has done a real service to the Linux community in making something which was once a dream for many of us Linux old-timers a reality.