Tablet makers have taken the completely wrong approach to compete with the iPad. Pretty much every Android tablet has the iPad beaten on pure hardware spec and capability, but the user experience is always sub-par compared to Apple's.
I see it time and again, and I've compared side-by-side many products while speccing and price matching kit for work and for uni staff - Apple's experience is just so slick, even though the hardware is inferior.
UI animation is always so pleasing, so fluid. In fact there's probably a bit too much animation as everything transitions in some way, but it helps the eye keep focus and context to what's going and what's coming next - the user never gets lost or surprised.
Now I love my HTC Desire (for example) and I will hold it up against any iPhone out there, but the experience just isn't as slick - frame rates in animation are lower and can stutter, some responses are sluggish and once in a while there's quite a jarring jump between screens.
Same with the iPad (especially the iPad 2). So smooth, so fluid, so crisp to look at (even though the display is lacklustre), so responsive and tactile which is essential for a touch device.
You can cram all the kit you want into a tablet, but unless you can get that fluidity, responsiveness and tactile response you will never beat an iPad in the mainstream user sector. Get it right, and Apple is toast.
Tegra 2 devices have the graphical power to really ramp up the UI, let's see people do it, and I hope the Eee Transformer I'm testing for work soon will be there.