Did anyone define what "discontinued" means in this case?

Few possibilities:
- Discontinued production.
- Discontinued sales.
- Discontinued support/repair.

What N800 may be in is the step 1 on this scale...

For reference, 770 is more or less in step 3. (If you have 770, and it breaks, they will give you N800 if still in warranty. If not in warranty, they will offer you a replacement to N800 with some certain amount of money... Also there are no more software update promises for 770 outside Hacker Editions.)