When you have the iPad with a keyboard and mouse? Aren't you basically back at a laptop?

Seems like a convertible tablet would've been a better choice.

X220T: http://www.notebookcheck.net/uploads/tx_jppageteaser/Lenovo-X220t-Tablet-flip-preview_01.jpg

Flip it around to use it like an ipad. Flip it back to use it like a laptop. Btw, the X230T comes out in less than a month I believe.