Over in the Technical Forum, CJ has just put up AGS 3.01's first Release Candidate. A Release Candidate means that CJ is only going to do bug fixes rather than add features as happens with Betas. Normally we go through 2 or 3 of these before the final version, so we can maybe expect v3.01 to be released in May, perhaps? v3.01 fixes a few niggles with v3.0 and adds a few handy things so should be well worth using when it comes out: there's no major changes compared to v3.00 so if you're already using it, watch out for the new version and upgrade when it hits the streets.
Full list of updates in the forum thread.