I fail to see how being able to read notes makes it unusable. Portrait mode is optimized for one handed use and there is no portrait keyboard. So what do you expect? If it's about following links, there's already a bug report about it. What else?

There are currently two more plugins in developement. hopefully more in the future. It will make sense then.

Could you please file a bug about this. Preferable with replacement strings.

Thanks for the feedback.