People already know what I want for the MacTablet, so I won't... fine, whatever:
13.3", slab format, MacBook Air internals, no ODD, no 3G built in (weirdos), no WiMAX (clueless), $1,999.
I think that setup is a fair bet, and with a 13.3" screen, it'd run the full OS X.
I think that anything larger than an iPhone that runs the iPhone OS is fairly useless. Just make a MacTablet that can have a full size (hence the screen) virtual keyboard, and then have it run OS X.
I'd bet that they could get Snow Leopard (or, hey, Leopard, please? I want this at MacWorld and we know Snow Leopard's not ready) running on an ARM like that. Heck, they had every version of OS X running natively on x86 internally at Apple.
I would do anything for a cheap Mac tablet.
Is ARM completely different from an intel?
On the software side, will this Tablet use the iPhone OS or is Snow Leopard efficient enough to run on, let's say, a 800 mhz ARM system?
Steve isn't stupid enough to miss the NetBook revolution.
OTOH, games developers care quite deeply, especially the ones who are trying to push as much performance for 3D as possible. This guy, for example. The iPhone ARM variant has a vector (SIMD) coprocessor which is very much unlike the SIMD functionality on PPC or x86.It is completely different. And nobody cares. Take a random iPhone developer, and ask them how sure they are and what evidence they have that there is actually an ARM processor in the iPhone, and not an Intel processor, or PowerPC, or MIPS or SH5. MacOS developers know how to write code that doesn't care what processor is used.
Apple will not make netbooks OR tablets any time soon.
Does anyone besides me think that Apple could be releasing a cheaper version of the iPhone to expand their cell phone line-up.
I agree 100%. Why won't you see a 10" $599 netbook from Apple? Because the $1800 Air is selling. There is no way Apple will shrink the screen just so they can sell a netbook for less money. Not gonna happen.Apple will not make netbooks OR tablets any time soon.

iPhone OS = Mac OS. The only difference is that code for backward compatibility is gone (ancient things like QuickDraw, but also the complete Carbon frameworks), there is currently only one supported architecture (no 32/64/x86/PPC versions), and some software that is more intended for servers, like Apache, isn't there.
Wouldnt surprise me if they added acceleratation instructions for Objective-C. When using Objective-C, you pass messages instead of calling function pointers (in C++ or .NET), which is inheritly slower. In code that is heavily Obj-C you do have a performance penalty.
I could see Apple looking at adding Obj-C functionality to the instruction set; if you execute message passing at 2x the speed of a non-accelerated CPU, you get higher performance without raising the clock.
What these instructions would be or how they'd work, I'm not sure.
I'd like to see those "measured in days" results as well. I've got an iPod touch that only gets about 4 hours of use for very low fps games (solitaire, etc). Pretty pathetic.
"will have the Objective-C instruction set built into the chip".
Ok, that way it makes no sense.
But it is conceivable, and would be very cool, if the instruction set of the new microprocessor were the IR (Intermediate Representation) of the LLVM compiler that Apple is actively developing (and already using on the iPhone).
That is now a "virtual" instruction set of an imaginary 64 bit processor.
That would not be ARM then, just like if x86 supported PPC as its instruction set it won't be x86 anymore. And if you are thinking about ARM + LLVM - that would increase the die size and complexity and along with it power consumption.