We have not won the war on boredom. At best we have won the war on idleness, which is only a lite version of it. If anything, these kill-time gadgets exacerbate the deep boredom problem, what Pessoa calls tedium:

Tedium is not the disease of being bored because there’s nothing to do, but the more serious disease of feeling that there’s nothing worth doing. This means that the more there is to do, the more tedium one will feel.

I can totally relate to this quote and attest to the ineffectiveness or even negative effect most tech toys have in alleviating my chronic diminished motivation and under-functioning reward system.