It looks like a great keyboard. I have the PX-350 - found an open box special - and I can't get over how great the Concert Grand Piano voice is. It's really, really exquisite (The other voices range from very good to eh). And I just LOVE the key bed with the ivory feel. I'm spending so much time away from my PSR-S950 that she's getting jealous.

For $999, 88 graded hammer action, light weight, and all of the features the PX5S keyboard has, it's not a big deal to fork over another $500 to own an iPad. The iPad isn't a one trick pony. You can use it to watch funny videos in bed.

Bravo Casio.