If all goes to plan, Beta 3 will be released sometime after the 24th of July. Note that the release will only happen when everything is ready, so there are no final dates and the timeline may change to account for delays.
The Promotion Team is currently investigating Beta3 DVDs and USB sticks to order: the Inc. has been notified and quotes have been requested from two possible services.
A lot of other software projects would’ve called these betas final releases. Haiku is a lot more stable, capable, and usable than the beta label indicates.