Simon Willison’s Weblog

Symbian Operating System, Now Open Source and Free. With Symbian now open source, are there any widely used operating systems left (besides Windows) that don’t have an open source core?

Posted 4th February 2010 at 8:38 am

Recent articles

Qwen3-4B-Thinking: "This is art - pelicans don't ride bikes!" - 10th August 2025
My Lethal Trifecta talk at the Bay Area AI Security Meetup - 9th August 2025
The surprise deprecation of GPT-4o for ChatGPT consumers - 8th August 2025

open-source 262 operatingsystems 1 symbian 1 windows 39

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