This excerpt taken from the ZBRA DEF 14A filed Apr 21, 2009.
Stock Option Terms. The annual stock option awards made to the Named Officers in 2008 are non-qualified stock options. Consistent with the 2007 annual stock option award terms, the Committee determined that the annual stock option awards in 2008 would vest over a four-year period, with equal portions vesting on the first four anniversaries of the grant date. The stock options expire no later than ten years after the grant date.