Many people read the news and sometimes or every-time, theres always politics and the USA involved. USA has commented on the Libyan situation and the Israeli situation. To actually get TV with news channels in the car is expensive but it is cheaper to have an Android devices/Tablets.
The only things that you do receive from this app is presidential photos and video, updates from the blog and briefing room, and alerts about events and announcements. So there might even be such a photo that the president may be using a Blackberry and just may be, the specific Blackberry.