Nexus 7 can't scroll using mobile web version
The default web view using the Nexus 7 is the mobile version. The trouble is that it it refuses to scroll down in a list. So if there are more tasks in a list than screen space, you can't see or edit them.
we're sorry for the inconvenience. We are aware of such issue that occurs with the mobile version of the Chrome browser.
We will release our new native Android app within the next 2 weeks which will solve this problem and allow you to use much more great features from the web-app then in the current mobile site. You can take a look at the first screenshots here: https://plus.google.com/b/106827182652048588353/106827182652048588353/posts/Hh9u8Sg7xnh