It remains much the same. Ongoing discussion. Pretty much makes Gps programs such as track recorders useless, as who wants the screen on for that use case?
That said, it is WIP and issues are openly discussed. Small team, so progress is slow.
I enjoy the MX4, mostly for the browsing (this was a major issue on the n900 in the end for me) and the camera is very good. Otherwise the n900 keeps my heart.