Yes, alpha1. We've got a modified milestone schedule (you can see the plan in the seamonkey newsgroup) and so this 1.8 alpha release will become 1.8 alpha1 with an alpha2 to follow in about 6 weeks. It's my plan to get alpha1 out the door tomorrow. If you know of anything horrible that should block the release of this alpha milestone, please nominate the bug for blocking. Thanks.