Needs of people who use Onyx productively?

I love Onyx. I read on it, but I don't use it "productively". I don't annotate, edit or compose on it besides occasionally using it for raw typing input to be processed elsewhere.

For those who do use it productively: is there any key aspect, helper or omission that needs to be addressed? Do you interact with the "cloud"? Do you need better interfacing with your desktop? Do you even have a desktop?

I recently wrote a pair of programs that allows you to paste Unicode text (i.e. Chinese, Russian, Japanese, English, etc) from your desktop to an Android. I haven't gotten much response on this. Is this something useful? Or maybe the reverse case, pasting from Android to desktop? What is your deepest, darkest desire?