I have not touched either my laptop or my lenovo tablet. I know this sounds a little bit over the top, but how I would describe this device is it's a dream come true. I've been working on an app for the department of transportation. I'm a programmer trapped in a structural engineer's body. I've been using this device to test out my app for the dept. of trans. and it works way better. Unlike a tablet, this machine is powerful enough to render very large plan files. And unlike a tablet, it easily allows an engineer to be interacting with it in the field using my app. I am currently sitting on my bed while I type out this post. And indeed, I feel very comfortable typing on this on my lap. Pity that not more people realize the potential of the sp3.