I have built a basic app using the Reader API but I dont want to retrieve all the items at once to save on bandwidth and processing. I start with the first 50, using
http://www.google.com/reader/atom/user/-/state/com.google/reading-list?n=50&xt=user/-/state/com.google/read&r=n
but then I want to get the next 50 once they request it.
I have been playing with tracking the <entry gr:crawl-timestamp-msec="">
but I reckon there's a simpler solution.
How do I do that?