I thought that the 2% figure was 2% of Hopper installs, not 2% of the entire customer base...
correctly, 2% of the installed hopper base as scott wrote:
I was told that less the 2% of the installed hopper base has two hoppers. I am sure that number will climb over time.
so, if they installed 100,000 new hoppers, only 2,000 hoppers were installed in the same house, or only 2,000 users have the 2 hoppers combination