How could you expect to be impressed when you barely know anything about it? It's tiring to see the same whining comment over and over about the pricing when we don't know the pricing. It seems obvious to me that it will have to be significantly lower than the normal $129, probably at least by half.
Also, this is not "service pack" type stuff since Apple doesn't do service packs. The things they are fixing aren't necessarily bugs, but performance issues and legacy stuff that is no longer necessary. Snow Leopard is very necessary, it's going to prevent a whole Mac OS 9 to X or XP to Vista transition happening all over again. The reason we even had that transition in the first place is because of people being unwilling to change, and Apple was too afraid to do anything drastic until they had no choice. Luckily, Apple is going to do it no matter what.
And why do you think that is? It's because they add new features that have bugs. How can you not understand that that's the whole point of this release? They are going to spend the amount of time they normally spend adding new features (and bugs) and instead they're going to increase performance and maximize stability. I've noticed that OS X isn't as stable as they tend to say, and I believe that this will give us a truly rock solid operating system.
Really? You Really think that Apple might have a trick up their sleeve or might, oh, I don't know, be withholding information that's under some sort of NDA-like thing in their Leopard developer sessions? What amazing insight you have. Also, NO. Apple will almost undoubtedly not allow OS X to run on PCs. They already tried that once and it almost killed them. Sorry for the sarcasm...
See, that's what I really think this update is about. They have a lot of features in there that are really buggy, but in a normal release they might fall under the radar. This is where they get to tie all of those features in properly. Here's a list of the ones that I know of:
Resolution Independence
Quartz GL (Quartz 2D Extreme)
ZFS
FTP
I'm sure there are a lot more. I really think they just aren't at the point where they can talk about it.