@mizra -- Thanks for your suggestion. I downloaded and installed Opera Mini on my Treo 600 (I downloaded the PalmApp version). Unfortunately, I got an error message when I ran it. Apparently, Opera Mini needs a JVM and it prompted me to install one from IBM Websphere. I'm afraid I gave up at that point.
As far as displaying actual web pages goes, I'm actually fairly happy with Blazer, which is the web browser that comes with the Treo 600 (although I'm always happy to try new ones).
I guess what I'm really looking for (which I didn't explain properly in my original message) is a scaled down version of Fluther that's been designed for mobile web viewing.
I've been "conditioned" by other sites to expect that the links and content of the mobile web version will be a carefully-thought-out subset of the full web version, with a lot less functionality.
Some examples:
1. http://twitter.com vs. http://m.twitter.com
The difference is even more obvious if you're logged in.
2. http://30boxes.com vs. http://m.30boxes.com
The web version is very heavy on java / Ajax. The mobile version is simple and lean HTML.
3. See also Gmail (http://gmail.com) and Google Reader (http://google.com/reader), which are the two other services that I frequently access via mobile web. The full web versions are very different from the mobile web versions.
In fact, I've noticed that with the mobile web versions of the various services above, a single mobile web page is usually around 5kb to 16kb in size (with images disabled). Even with images disabled on my browser, the current Fluther home page (beautiful as it is) was well over 156kb.
Oh, and the main reason why I'm looking forward to a mobile web version is this -- reasonable data plans aren't available yet with the mobile carrier companies where I'm at. I either have to pay a fixed amount for every 30-minute session, or I have to pay according to a per-kb charge. There's no unlimited data plan (not yet anyway) available to me as part of my mobile phone package.
Anyway, this is all just my preference, which may not be relevant at all to the majority of Fluther's users. I just figured that it wouldn't hurt to ask. 8-) Thanks again!