I still read the PM forums daily. I used to just check the developer forums, since they're the best, but now there's so little to read I look at the Anything discussion too... I just usually don't post in it much, since inciting flame wars and discussing politics aren't things I typically do.
I still haven't tried a smartphone yet. I don't think I'd like not having the stylus. Isn't navigating web pages somewhat difficult without a stylus? And you have to type everything using the keys, right? So if you want to type your name, you have to press buttons a few times for each letter, just like with normal phone usage. How are the controls when playing games, anyway?
I find it hard to imagine that Smartphones would ever replace PPCs. Isn't it more likely that more and more PPCs will get the phone capabilities built into them? They just need to do something about the sorry battery life of PPCs.
-John