We are currently winding down the development phase of Inkscape 0.49. We have no estimates currently about when it will be released. However, this does mean that we will be putting out test builds and holding an About Screen contest in the near future. We will keep you posted.
In the meantime, if you're interested in some changes that have happened since 0.49, check out:
wiki.inkscape.org/wiki/index.p… (note: not all changes or new features have been documented yet)
On behalf of the Inkscape development team,