We have a review of the ThinkPad X220 here: http://www.mobiletechreview.com/notebooks/Lenovo-ThinkPad-X220.htm . This is the version without the digitizer display, but is otherwise the same. The Lenovo ThinkPad slate tablet that runs Android will be similar to the IdeaPad Android tablet we reviewed minus the horde of consumer software bundled (that's a good thing). But it's no replacement for Windows, if that's what you need. And a capacitive stylus (used on the Android tablet) isn't nearly as precise as the active digitizer in Windows tablets like the Asus Eee Slate and X220t.
-------------------- Lisa Gade Editor in Chief, MobileTechReview