The demo is suprisingly good in UX, check it out here : <a href="http://datazenit.com/static/sensei-grid/" rel="nofollow">http://datazenit.com/static/sensei-grid/</a> ! I geniunly dig this one!<p>I just miss an escape when you edit a field and want to cancel the change, so it restores the original value (instead of an undo button), but thats it