To clarify, I didn't say Navit is orphaning the N800. I meant that the N800 itself is in orphaned status--that is, Nokia no longer supports it. So much for future-proof.
As for Navit, it may be getting updates but it still doesn't hold up against even the old Wayfinder app yet. It's a nice development exercise, but it lacks a useful turn by turn navigation mode and it's got a long way to go before it can be useful for the average user.