The prices I've seen quoted don't make any sense for a large flash based player. By the end of the year they were theoretically going to be $200 for 32GB...and that's not going to happen in a $250 player.
My guess is they'll either have basically an iPhone without the phone (and with 4-8GB flash), or something similar with a hard drive, or both.
Out of curiosity, are you on your original battery with your 3G iPod? Is that what's gone wrong with it?
My 3G's battery died last summer, and I got a 5.5G when those became available. I *REALLY* dislike these non-replaceable batteries though.
There are cheap replacements (though getting the cover of your iPod off looks iffy IMO, and the companies selling batteries are kind of iffy too). But for like $15 that might be worth it to keep it going until something better comes out. I *really* hope my 5.5G lasts longer, or else I doubt I'll get another iPod. Find something with a replaceable battery...
Regarding my 5.5G, overall I like it MUCH more than my 3G. Stuff I like:
-they switched from an all touch interface that I abhor to a hybrid physical/touch interface, where you're not accidentally skipping to the end of a file all the time. I don't even put my 5.5G on hold ever, because I don't need to.
-It can remember it's position in a file. I mostly use my iPod for podcasts, so I used to have to write down where I was in a file, and then manually get back to it after I unplugged my 'Pod from my computer.
-Obviously the screen and physical size are just incredible compared to the 3G. I used to think my 3G was small, but my 5.5G is tiny in comparison. I had it on top of a chocolate bar (Endangered Species chocolate company-AWESOMELY yummy

), and it's about the same thickness but smaller in every other dimension
