I didn’t notice Instapaper now supports wireless delivery of epub’s.
Reading on the Kindle’s non-reflective, e-ink screen is easy on the eyes and great for longer content.
Instapaper provides Kindle-compatible files, easily transferred at no charge via USB, containing the Text versions of your saved pages in any folder.
Additionally, you can set up wireless delivery to automatically send your most recent Instapaper stories every day or week. Note: Amazon assesses a surcharge for each wireless delivery, and wireless delivery is not available in all countries.
Instapaper also provides ePub files for other electronic reading devices that support ePub, including most Sony Readers and the Barnes & Noble Nook.
Ok besides the Amazon surcharge (which doesn’t seem to apply if you have a wifi only kindle it seems), this is fantastic. I use to use Instapaper but switched over to using Readitlater. I might have to switch back? At least till readitlater enables the same feature (i and others have already suggested it)