Simon Willison’s Weblog

22nd October 2007 - Link Blog

OpenStreetMap on the iPhone! Via an ingenious hack. The Google Maps iPhone client caches downloaded tiles using SQLite—to display your own custom tiles, you just need to dump them straight in to the “cache”.

Posted 22nd October 2007 at 3:30 pm

Recent articles

Datasette Apps: Host custom HTML applications inside Datasette - 18th June 2026
GLM-5.2 is probably the most powerful text-only open weights LLM - 17th June 2026
Publishing WASM wheels to PyPI for use with Pyodide - 13th June 2026

This is a link post by Simon Willison, posted on 22nd October 2007.

google-maps 53 iphone 63 mikel-maron 4 openstreetmap 55 sqlite 467

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe