Do the current crop of tablets (post iPad) miss the mark?

As a Digital Artist, I've been a long time user of windows based tablets, and whilst I love the features found within the modern ARM based, mobile OS toting Tablets, they all seem so far from the productivity focused tablets of yore. 

Even the most productive of the Tablets out there, the Lenovo Thinkpad Tablet still has a ways to go in terms of app support and ease of use.

What do you think of the trends we've seen, now that we're in the second generation of these media tablets?