Tablets are still pretty much unusable for any real work. With a keyboard dock their price jumps by $100-150, and they're not nearly as good for typing on as laptop, nor are productivity apps nearly as fully featured.
What I really wish Intel would've done is lower the idle power consumption of the platform. Even if this may seem unreal, the ULV and Standard voltage processors use about the same amount of power on idle and normal use, and in some cases the standard voltage system may even use less. The problem is, since Ultrabooks are so thin, they have small batteries. That means they only get about 6-7 hours of battery life.
I have a kill-a-watt, and some weeks ago I did some tests regarding power consumption:
Idle:
- 14" laptop with Core i5-2410M (standard voltage)=8-9W.
- 11.6" ultra-portable with i3-330UM (ultra low voltage)=9-10W.
Full load (CPU + IGP):
- 14" laptop with Core i5-2410M=47W.
- 11.6"ultra-portable with i3-330UM= 25W.
I know this isn't directly comparable because one is based on Sandy Bridge and the other on Nehalem, but you get a good idea. The new 11.6" Ultrabooks would use the same power as the 14" laptop, or maybe a watt less. At idle there's pretty much no difference between an ULV and standard voltage processor, which is why Ultrabooks don't have
that great battery life. When you're using your system normally it spends most of its time idle, and that's where the processors are the closest on power consumption.