Unlike the majority of domain extensions on the list, I notice that .mobi domain counts are going down, rather than up:

Jan - 866,770
Feb - 846,994
Mar - 841,092
Apr - 840,581

The all-time high for .mobi appears to be October 2008 at 956,412.

What does this mean? That after all the .mobi hype, a lot of people are letting their .mobi domains expire?