R2.4.1 Beta 1 is now available via the "Get the latest beta" link on the front page, or directly from here:
R2.4.1 is mainly a bug fix release but a number of cosmetic changes have found their way in as well. Full details of what's changed can be found on the download page.
Also available is Keyana 1.0 Beta 1. This is a Command Prompt equivalent with built-in keyword analysis. When a keyword is detected, a Snarl notification is generated. You can find the download here: