An ability of a car to connect to WIFI is an aspect that I am actually very excited about. For one in near future you will be able to browse Internet while you parked next to the coffee shops or other places with open WIFI Internet. Also, if you Android user with 2.2 release you can already connect your car to its hot spot feature.
There is plenty of information available on Internet concerning Ford’s AppLink. This is Ford’s API that will allow integrating your smartphone (Android, Blackberry and IPhones) applications with car’s mytouch and voice commands.
Ford announced releasing software development kid over a month ago. Read this announcement http://reviews.cnet.com/8301-13746_7-20019121-48.html. And official Ford’s news release http://media.ford.com/article_display.cfm?article_id=33366
Supposedly Applink is going to be released first in 2011 on Ford Fiesta followed by Edge and MKX on their 2011 models.