I love the idea of Borogove. The UI is a lot less cluttered than desktop I7, which is a good thing in my book.
I could see it as a suitable platform for testing code on the go. On my Android phone, though, the editor becomes unusable. It rejects key presses (newline and backspace) and there’s something funky about the caret that suppresses the keyboard even appearing after a short period of editing.
This may be Android’s fault, but no other web forms do as badly, so I thought it deserves mention.