Well, I just noticed it, maybe or maybe not as you say.

Also, like which hardware differences? :P

Yes, Hollywood is a multi-chip module, with two chips: Napa and Vegas:

Napa includes the GPU, a 3MiB cache (framebuffer and textures), an IO controler, and a memory controler.

Vegas holds the Audio DSP, and the 24MiB of 1T-SRAM internal to the graphics chip.

Now, it is of important to note two things:

The DSP is not part of the die sizes I gave for the Hollywood's Napa, but probably is for the Flipper.

The 3MiB of cache did not change between Flipper and Hollywood. Note that this was suspected to take about a third of the Flipper's die size.

These two things combined mean that the space that is actually used for logic inside the GPU is likelly to have more than tripled really. And that equates to new features. What new features? No one really knows for sure.

What exactly does Nintendo benefit from at this point by continuing to keep much of the Wii's stats secret? The element of surprise?

Didn't you know that there's flexibility in plural and singular nouns when it helps your argument look good? That's how you turn "one developer" into "most developers".

So people like us don't bicker about how X's chip is N times stronger than Y's chip, because clearly that is all that matters, not innovative game design or replay value.

First, I would rather use the PS3 Six Axis for using the 'tilt' functions than the Wiimote. The controller fits so much better for holding it like a joystick, and having useable buttons. 

Second. Yup. I dont know if graphics will evolve much beyond this gen. I mean, instead of only the main character having amazing looking models, everything will. However, I dont expect to see that for at least 8 years.

Third - The Wii's Successor will be Wii2, And it's will be Wii3 and it's Will be Wii4. 

 Actually seeing that, now I can understand a few more things about you.

First, the Wii wont even look it's best on a TV like that.
Secnd, The extra detail the PS3 has over the Wii wont be seen.
Third, I would be in the market for a new TV.  I've never seen a 1982 model TV look better than even the first generation of LCD  TVs. The new ones make the first gen LCDs look horrible. You should look into buying a new TV. I say upgrade at least ever ~5years(Or pay someone to come in and focus your TV for ~200$). But with the new LCD's I'd maybe up that number to 10.

CRT TVs looks their focus over the years, no matter how well they were made, and need to be re-focused. My father-in-law has a 15 year old Rear Projector, and I have trouble reading text on it. (And he has it setup the best it can do)