Correct. I'd wager that "skirmish-tested" doesn't sound as good, though ;)
What i mean to say is that i'm very confident that it works good enough for a more-or-less public beta. Of course, much work still remains to make it compatible with every IMAP server out there, but as a single person i won't have the time nor the resources to get there.
A very small battle. More a skirmish, really.