AbiWord 2.4.4 has been released. This time there are binaries for MacOS X 10.2 (and up) on PowerPC. Unfortunately the equation support is broken on Mac in this version. I hope to have a new build soon for that.

Release Notes, Changelog, Download

About AbiWord on Intel Mac, there is at the moment no official build planned as none of the developers has an Intel-based Mac. There is no reason it wouldn't work, but the dependencies have to be rebuilt as well. I have requested Apple, thought ADC, a loan of an Intel machine for that, but no reply so far.