I've been wondering this for awhile now. Is it better to scan a 35mm negative, or a larger print from the negative? Which will provide a better scan? Does this change when moving to a larger film, like 120 or 4x5?


Question: Offline tiled map web app
Answer: You might be interested in the projects Maps on a Stick and MapBox iPad. (disclaimer: designed the former, involved in the latter. however, both are BSD-licensed, and the underlying tile format, termed ".mbtiles", is SQL-based.)

Maps on a Stick is an offline OpenLayers map. The main reasoning for going with a portable database/server instead of client side storage is that using browsers as large data storage isn't quite worked out and populating and indexing the cache can be costly.