SLARTI is (as far as I know) the only other investigation of Auslan in particular. Peter Vamplew (University of Tasmania) has been adopting a neural-network approach to the problem of understanding Auslan. His thesis is still not complete. However, partial work illustrated ([Vam]) is extremely promising.
SLARTI ( Sign Language Recogni tion) is a system built around Kramer's CyberGlove [Kra91], augmented with a Polhemus tracking device, which gives the 6 additional degrees of freedom discussed so far. The focus is of course on using motion to analyse sign. At the moment, the system is effective at recognising the Auslan handshapes. A discussion of some of his results can be found in appendix A.
While still unfinished, it is important in that it focusses on Auslan. Auslan is also interesting because it is considered a dialect of British Sign Language (BSL) and thus any findings for Auslan may be generalisable to BSL as well, about which there is relatively little research so far.