People that aren't Android users have no clue how idiotic disconnecting Google is on the Android.
Voice search and voice recognition is sampled on the phone but processed at the Googleplex.
If you replace Google search with Yahoo, do you lose all the voice capabilities?
Not only that, but gmail and calendar are also tightly tied into the phone.
Not to mention that Google Maps now supplies a free voice navigation system.
While it may be open source, the smooth slick interactive experience mostly originates from Google tools and AT&T is wasting their time and money trying to shove a Yahoo Android down the consumers throats IMO.
After owning the real-deal, I sure as heck wouldn't buy one.
Can you imagine if you did get the Yahoo version what an outcast you would be to all your laughing Android friends?
It would be like having a iPhone that only uses Bing for search and Zune for music.