There is one thing that destroys this otherwise great tablet for me: battery time. I read that it has only about 3 hours of it. Now, as a long-time slate user, (Motion Computing M1400:4h/battery, Fujitsu Stylistic ST5112:4,5-5h/battery for the non-extended one) that time (official, so in reality it may be 2-2,5 knowing Asus's practices) is just not enough to consider buying this slate. Especially since it seems the battery is non-removable.
MikeC, the news item seems to point to the Lenovo U1 forum post.