The important thing to remember when grading predictions is that most predictions are about trends.  So the important thing isn't whether "The Year of MobilePhone Computing" was 2008 or 2009 or 2010, the important thing is that it was still a few years off from 2004.  It's the same thing as the "Singularity" guy's predictions.  When you're predicting things 6 months in advance, you should get graded on a lot harder of a curve than predicting things 6 years in advance or 16 years in advance.