The most recent Multi-Touch / X Input 2.1 patches were published nearly one month ago and Canonical's Chase Douglas had based this work upon Daniel Stone's earlier patches. Chase though did not pursue getting this work into X.Org Server 1.10 but is rather waiting around for the 1.10 merge window to close and then will focus upon re-basing the work.
In recent days there's also been increased discussion on the X.Org development list about this input work and other input driver happenings.
Daniel Stone has also commented on the patches, "I'm back from 2.5 months of holidays and am slowly working my way through the email backlog ... I'm working on multitouch fulltime though, so hopefully we can get this sorted and merged fairly soon."