Some tout 'Hour of Code' as a 'publicity stunt for politicians,' some others that it's a waste of time, and some still as the best thing since, well, (computer) code was invented... or something like that.
Of course, it's what you do with it after 'the hour.' Getting some hype and introducing things to youth (or adults) is a bonus. The hope is it's not a 'one hour and done' deal.
Start somewhere... and then keep the conversations going.
Grab whatever device you have access to use and give it a try, especially if you've never 'coded.'
The hope is that the hour can get people interested in thinking differently toward more experiments, peer grouping... and even shifts in 'computer' / 'technology' curriculum in schools.
Combine coding with making... games, apps, machine to computer interface (Arduino, LilyPad Arduino, Makey Makey, Rasberry Pi, etc)... creative student exploration and projects? Now that's interesting.
"Hard fun"... Seymour Papert said that 30 years ago. Get kids involved in making things and solving tough problems.
Bring people with you and dive in.