I can be missing the issue completely, apologies if I do. IMHO making stability level part of the naming scheme is generally risky. Promotions/demotions happen and if they lead to lots of renaming, it would lead to problems on both the consumer and provider side: disrupt established system administration procedures and make the already difficult OS upgrades even more so. It is cleaner to make stability a distinct attribute (one recent example is DTrace).
-Artem
