Almost two years after the first Beta came out, Haiku announced last night that Beta 2 had been released, which marks the second milestone in the long road towards R1. Over 900 tickets have been closed and some of the highlights of this release include better USB3 support and improved HiDPI support, essential for higher resolution monitors. You can read the full release notes right here.
Excellent job by everyone involved in the project and congratulations are definitely in order. So go ahead and download it, install it, run it and as always, if you find an issue, don't forget to report it over at their bug tracker.