I had a flip phone until two years ago but it became a professional liability. I was interviewing at a tech startup in SF and the interviewer saw me pull out my dumb phone after the interview to check the time -- I got an offer, but not before the interviewer made a condescending follow-up call to ask if I was &quot;willing and capable&quot; to design for mobile because I had a flip phone.<p>Needless to say, I declined their offer... but I bought an iPhone shortly after so I wouldn&#x27;t ever face that situation again.