Blackberry moving into the consumer space was a bad idea on many accounts and rushing out BB10 with many features that were standard with BBOS while adding bells and whistles was also maybe not so clever.
However, now with all the fuss about the US's NSA and UK's GCHQ snooping everybody, businesses and Governments may now seriously be thinking about returning to the venerable Blackberry platform as it's the only phone with an encrypted end-to-end email service.
The German Government has already ordered 40,000 secure Blackberry Z10 phones (who knows why they didn't go for Q10's - maybe a bargain basement sale?). This trend could continue as other governments must also be worried about email snooping.
Blackberry seem to be moving back away from the consumer market and concentrating on what they're good at, encrypted secure communication devices which can meet regulatory approval for organisations such as banks and governments, maybe they'll survive after all, but in smaller markets where people are prepared to pay for the secure services they need.