The 11.6-Inch Taichi 21, You will know that unusual Dual-screen Design had a pretty bad impact on battery life. ASUS is talking another crack at the whip, however, this time With the 13.3-Inch Taichi that is finally shipping after a Major hold-upin the US and promises a big boost to stamina -- a max of seven hours of use rather then five. If this Claim Stands up to scruting, the Ultra Books other advantages should come back into play: namely the presence of Pen or Multi Touch-Input on the Outer Screen, Excellent viewing angles and speakers, and a range of configrations Based on either a Core i5 Or Core i7 With SSD Storage . We Have no Ideo How Pricing will compare to the $1,300 Based on the 11-incher And the taichi 31 has no appread at any major retailer Yet -- ie it Still is not  Quite as "Available" As ASUS Claim.