The main way in which these predictions were off the mark is that media distribution in Cronkite's 2001 is still a one-way street, from news organization to individual news consumer. His future world missed the extent to which arguably the most important content generation is done by the consumers themselves -- Twitter, YouTube, blogs, forums, etc. (Okay, there was no Twitter or YouTube in 2001. But you know what I mean.)
The delivery methods might be slightly different (hardware devices rather than printed paper- although http://bergcloud.com/littleprinter/) but most of this isn't too far from the truth.
The main issues though that aren't covered are the dividing lines of wealth that allow people to have these - and the density of living space.