Is there a problem with the send to instapaper feature ? I'm unable to authenticate from within the iphone or ipad apps. Going to the website directly works fine.
When I try and sent to Instapaper from the iOS app I get a popup asking for my logon credentials. When I enter them incorrectly I get an error message as expected. When I enter them correctly I get no error message and the box disappears. However, the article does not show up in my instapaper queue and if I try to send that article, or any other article to instapaper again I am prompted to enter my log-on credentials again.