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The idea that Seadragon is a platform that can be compared with Flash and Canvas is such crap. Its just a library for zoomable maps (which you've been able to create for years with the google maps API since 2005 or something).

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I disagree, Flash and Canvas are not suitable for displaying large number of objets. Using zoomable maps is a good workaround for that.

Google Maps needs an API key, whereas Seadragon doesn't and its a simple JS file < 100ko.

Seadragon could be implemented on Flash or Canvas. It's a library, not a platform. It's like comparing The Wire and a camcorder.

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