I too am mulling over purchasing a new Kindle during an upcoming trip to the US, and am not wild about touch screens. Also, I'm quite sure that shortly after I buy the silly thing, they'll announce the new ones.
My advice: Get a cheap basic ereader. Turn off all the features you can(airplane mode works). Use Calibre. Every 2-4 weeks charge it and put books in it (not too many!). Forget about upcoming models. It's a book. You wouldn't care if a new edition of a novel came out with a different cover and font.
Mine is just for reading books (not articles, reports, emails, blogs, etc). When I pick it up, I relax. I read books. Completely different to the ADD experience of picking up my ipad. Strangely, I went back to reading fiction after buying it.
Funny you should say that; I would still buy one of the older models rather than buy from the current lineup. Maybe some surprise will come from the next Kindles that will change my mind, but I've evangelized the Kindle Keyboard 3G (it was once called the Kindle 3 with 3G) to my friends and family, as you get Internet access internationally without wifi.
It's amazingly handy while traveling to be able to read the news, check for important email, etc, without roaming. The current Kindles with 3G limit you to a small subset of the net, but the Keyboard is unlimited.
I use the same and think it's pretty good. My only gripe is that the slots for where the cover/light connect aren't very sturdy. I have young kids who have bent the cover back many times and because the plastic is so thin at that point, the slots have cracked. You now have to jiggle the kindle around to get the light to turn on since the connection isn't good.
