Jason Grigsby is co-founder of Cloud Four, a small web agency in lovely, Portland, Oregon. He co-authored Head First Mobile Web for O’Reilly, was part of the team that worked on the Obama ’08 iPhone app, founded Mobile Portland along with the first open device lab; and was a signatory to the Future Friendly Web manifesto.
When he was young, Jason whistled at 1200 baud, was utterly unimpressed when first introduced to Mosaic, and was bit by the mobile bug in 2000 when WAP was crap. He participated in the Responsive Images Community group and has written numerous articles on how to use responsive images. He is currently obsessed with the potential of Progressive Web Apps.
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