I think the iPad's form factor makes it a nice sofa device. To be truly portable it should've been slightly smaller. There's no way—I think—to hold an iPad with

I think the iPad's form factor makes it a nice sofa device. To be truly portable it should've been slightly smaller. There's no way—I think—to hold an iPad with your hands and use both of them for interacting. One needs to support it with one's legs to fully use both hands.