Moreover, media reports suggest that people are becoming
more attached to their smartphones, with ensuing social difficulties.
A Website called ‘‘Crackberry.com’’ includes an online forum
for ‘‘abusers’’ to admit their ‘‘addiction,’’ and a notice board for
Blackberry ‘‘users and abusers,’’ where thousands of users discuss
their addicted smartphone use. These self-report evidences
indicate that a large number of users may be experiencing
unwanted reliance on their smartphones [7].