This sounds like a good idea, but keep in mind that various stages in a baby's development is shorter than you might otherwise think.  I worked at home when my kids were born, and for a while it was cool to have a mat in my office where I could lay them down for a nap.  Shortly, they were walking.  Strategies for one stage went out the window when the next stage came along.  But, hey, if that is what helps you decide to purchase an iSlate, more power to you.