Earlier quoted context omitted.
FWIW, I just signed an employment agreement with a major development firm which included similar clauses. I was about to reject it and ask them to send one without such onerous restrictions when I got to the end of the section which included a large caveat "This section shall only apply to work performed on company time with company equipment," just in more legalese. As a graduating college student I've heard others…
> "This section shall only apply to work performed on company time with company equipment," The question then is who has to prove company time and equipment were used? Employer or employee? I ask because practically its going to be a grey zone. If you accessed your private gmail account during office hours and happened to see you have a potential customer lead for your out-of-hours project, are you in violation?
In your shoes, I'd keep them very separate. A friend has a work smartphone and a personal smartphone for just this reason. But beyond the technicalities, it's only polite to stay focused on your employer's work while you're at their place or otherwise on their dime.