cell_stitch provides a web venue and a mobile phone framework for urban wandering and screening shared images, sounds, and text messages sent by a diverse group pedestrians who live, work, and transverse the streets of Sevilla and the Andalusian region. Sevilla, ancient crossroads of world culture and religions, provides cell_stitch a deep and resonant metaphor of historic encounters of strangers and communicators. cell_stitch encourages participants to explore and discover their own Sevilla, the capital of Andalucía, where so many humans from land and sea have survived and thrived, drawn to the region for its access to rivers and caves in ancient times, and now, for its prime technological location, a potential gateway to the virtual world.