The tablet market has, up until recently, been pretty one dimensional, but now it's emerging into a battle fought on several different fronts. The original iPad first arrived in 2010, and having tried to emulate its success by essentially emulating its design, competitors have taken revised approaches. As well as the smaller tablet (see Google-ASUS Nexus 7), there's now a Microsoft-lead push for so-called hybrid devices - tablets which can also double up as notebooks and ultrabooks with attachable keyboards.
