if you want to buy gps cell phones, you can choose BlackBerry. there are many Blackberry gps cell phones in the market. they have built-in GPS capabilities, such as BlackBerry® Storm™ 9530, BlackBerry® Bold™ 9000 ; BlackBerry® Pearl™ 8110, 8130;BlackBerry® Pearl™ Flip 8230 ; BlackBerry® Curve™ 8310 , 8330 ,8350i , 8900 ; BlackBerry® 8800 ; BlackBerry® 8820 ; BlackBerry® 8830 World Edition smartphone. you can also download gps applications for other BlackBerry phones