AT&T is going to offer a global navigation service in collaboration with TeleNav. At present, TeleNavs products are available for BlackBerry devicesa only, but as AT&T is the iPhone carrier in the US, the likelihood of an iPhone version increases.
The new service is going to "take advantage of supporting smart phones greater memory, data storage and overall processing power". Do I sense an offline version to avoid data roaming when traveling abroad?
They also say that "AT&T will certainly expand the offer to other devices in the future" which could include the iPhone.