The Tour of Duty team has entered the final stages of beta testing, and assembling a couple more release candidates leading up to Beta 1.0 (our first public release).
We coders are working hard on bug fixes, the level design team is adding some extra polish (and maybe an easter egg or two ) to their maps, and the modelling team is working hard to get finalized skins and making sure the animations are all timed correctly, and adjusting things so they're 'just so'.
I can't tell you when the release date will be, however, I believe we're still on our own internally set target.
The beta team is reporting fewer bugs with each new release candidate, and the Linux server has been stable for a few months now.
We're also doing surveys of the 150 beta testers to determine their opinions on the best levels to release with and making sure that our weapon damage feels realistic and fun to them (so far about 4 out of 20ish are needing minor adjustment).
Expect to see a release announcement here and at all the Halflife news sites before the end of the summer.