This excerpt taken from the HPQ DEF 14A filed Jan 23, 2007.
From the North on Interstate 880 (Oakland/Hayward/Fremont):
Take I-880 South to Highway 237 West towards Mountain View. Take Highway 237 West to the Great America Parkway exit. Turn left onto Great America Parkway. The hotel is located at the corner of Tasman Drive and Great America Parkway.