anyways, it's still to early to get alarmed: if the user response is so negative after cutting n800 PRODUCTION (after 1.5years), they would most probably restart producing it.

otherwise :
1) Diablo (maemo 4.1/5 - yet undetermined) WILL be available for the n800 - the support is still there AT LEAST until july (n810W release date), and even more (Diablo will have lasting support)
2) they may already have a successor in development - we just don't know it yet.