Eh, it's not like porting to Android has any bearing on porting to desktop Linux since the UI toolkits are completely different. I guess this would be cool, but I'd be surprised if many people used it over LibreOffice.
That's what I was thinking. On the other hand, Microsoft has already ported some of the functionality to JavaScript to make Office 365 -- maybe they could offer cross-platform support via an Office 365 client that could run offline? It would still be a far cry from Office on Linux/Android.