The answer is- it depends ...
The production changed to the i-ABS unit in late 2006 for the 07 model year.
It is likely that early '07 plate bikes are the servo unit, allowing for bikes that were on dealer order, or unsold stock.
Late '07 and '57 on plates will be the i-ABS system, but you will be aware that early units are now failing due to the pump brushes binding in the brush holders.
This affects all of the R and K bikes until 2010, when ATE revised the motor baseplate.