title: ExtJS Grid Row Specific EmptyText?
body: <p>Our application uses the <code>Ext.grid.Panel</code> to display rows of data. When the user clicks a "New..." button we are adding a new record to the grid store.  Everything is working fine.</p>
  
  <p>However, on certain fields, of just this new (as of yet) unsynced records, we would like to display specific empty text within certain cells.  For example: 'Enter title here'  or 'Choose a platform".</p>
  
  <p>I know there is an emptyCellText property on Column, but a) <a href="http://www.sencha.com/forum/showthread.php?261494-4.2.0-The-option-emptyCellText-of-the-column-is-ignored" rel="nofollow">its broken</a>, and b) I'd like to have this happen only on new, unsynced (e.g. phantom) records.</p>
  
  <p>As I am new to this framework, any ideas are most welcome.</p>