"Can I use Google Latitude? According to Google, if you have any
mobile device that supports Google Maps for Mobile v3.0 and above,
you're probably good to go. Those include Android-powered devices
with Maps v3.0 and above; most color BlackBerry devices; most
Windows Mobile 5.0 and above devices; and most Symbian S60
devices.
"In the near future, you'll also be able to use Latitude on the
iPhone and iPod Touch with the Google Mobile App in the U.S., and
on many Sony Ericsson devices. In addition, you can use Latitude
today on a Linux, Mac or Windows PC by using the Latitude iGoogle
gadget (you'll need a Google Account) and iGoogle, Google's
personalized Web portal."