Hi Rich,
Sorry for the inconvenience caused.
We have fixed the reported issue Shift + Tab key press behavior in GridControl. This fix will be included in our next Volume 3 release 2012. Essential Studio Vol 3 2012 is rolled out and is available for download under the following link.
Link: http://www.syncfusion.com/support/forums/general/104795/Essential-Studio-2012-Volume-3-Final-Release-v103043-available-for-download
Please let us know if you require further assistance on this.
Regards,
Kathirvel