Optimising the mess that is X is just as viable option to me as 'providing OS for all the abandoned HW', if this was a one weekend excercise, sure. Whole Jolla team worked for over a year to stabilise their own Jolla phone. Libhybris as revolutionary as it is, is brought down by the fact chinese manufacturers develop drivers only until it miraculously works for this specific configuration. With open drivers the latter at least would be a possibility (which could happen with tablet?)