I would be more concerned about the missing express keys.
I know I know, besides the slightly overprice wacom tablets which used old tech CPUs even when they came out, have the wacom digitizers some people seem to loathe because of the screen border inaccuracy (I totally love my cintiq, but this regularly drives me mad. Trying to hit something on the Toolbar at the border is a mess, as long as the toolbar is not totally huge with gargantuan icons on it), and seem to be all but forgotten by Wacom this year (I mean, a haswell refresh would be really needed to bring battery life to a usable level... the new M Core from Intel would be even sweeter), nobody seems to have thought about that until now.
Still, trying to work on a cintiq with a keyboard for the modifier keys is awkward. Trying to work on a digitizer tablet with ONLY the touchscreen (touchscreens, how I totally HATE them!) keyboard -> the horror! Either you have good palm rejection (forget that with windows 7, don't know if windows 8 is better), or you will constantly have to ctrl-Z unwanted touch events. And the fact switching off the touch screen is buried deep into the settings in windows does also not help.
And then there is the fact you are have just obscured about 1/4th or 1/8th of your usable work area with a touch keyboard!
Personally, I will throw away my aging Samsung Series 7 Slate, which is "barely usable" for serious graphics work as soon as either Wacom releases a new generation of their Tablets, giving them better battery life and a keyboard case (because really, I hate typing on touchscreens!)... altough a slightly better GPU Part (if it has to be an intel "freebie" part, so be it, just make it a good one), a digitizer that slots into the tablet, and a lower price would be also welcome (last part is wishful thinking I guess... because Wacom )
.... or other manufacturers finally get their shit together, throw away the idea that a tablet has to be as light and small as possible, finally fatten up that bezels and fill them with programmable keys I as an artist so desperately need to keep my already small screen area free from touch keyboards and the touch screen switched off.
Add again a good keyboard cover (Can't blame MS here, the Surface Keyboard covers must be brilliant), good battery life (Again MS nailed it), and I will be onboard.
I don't care much about the whole N-Trig vs Wacom argument. From what I have heard, the new N-Trig digitizers must be as good as the best Wacom delivers, minus the border inaccuracies. I could live with less presure levels and a battery in the digitizer for that alone.
But besides that point, I am happy with wacom digitizers.