Cordova plugin to cache remote images in the local SD. For Android only and still BETA!!!
cordova plugin add https://github.com/Urucas/phonegap-image-cache.git
As soon as the plugin it's installed it's fully working. The plugin override the url images request and download and stores them into the local SD for 5 days.
You can change the days using:
window.icache.config(2); // 2 days cache