Anyone who is familiar with Asus' products will be familiar with the Transformer concept. The new Asus Transfomer Pad is here to challenge the dominance of the iPad Air, as well as the Sony Xperia Tablet Z and Google Nexus 10.The key to the popularity of the Asus Transformer Pad series has been the keyboard docking station, and that's present here too - allowing it to double up as a mini-netbook.Microsoft has taken massive strides in this area with the Surface 2 coming with an extra keyboard case, so Asus really needs to up its game if it wants to keep up with the big boys.Taking a look at the new Transformer Pad you'd struggle to see anything different between it and its brethren. At 263 x 180.8 x 8.9mm it is only 0.4mm deeper than the Transformer Pad Infinity.