1.7.0 extend issue filter + calendar / upgrade configuration screen
1.8.0 facelift DHTML menu and login system / review of roles & etc
1.9.0 facelift DHTML issue view (JIRA-like) and e-mail notification
2.0.0 issues tree + plain tags
2.1.0 built-in wiki
2.2.0 built-in sample/production database (by Derby or HypersonicSQL)
2.3.0 built-in jabber server + notifications via jabber
2.x.x dynamic queries for issues (using Hibernate's HQL)
Of course, deadlines are hardly to set up at the moment. I'll be happy bunny if we'll have 2.0.0 in beta on April 2007 and 2.3.0 on July 2007.
Andrey Drozdov