Strictly speaking, nothing in the wording of Apple's release says anything about an "announcement."
It could just be a press reception to promote the existing Aperture software and Mac hardware lines.
Apple does the same thing at the National Association of Broadcasters and other TV/film conventions on behalf of their Final Cut video product line. They typically have a big presence simply as an exhibitor, but don't necessarily announce new products for that channel.
Incidentally, since we've been talking about the Leica M8 in so many other threads, does anybody have any idea of whether Aperture will support its raw-file format? I know, the M8 saves raw files as DNG, and Aperture's specs say it supports DNG. But it ONLY supports DNG files from cameras which it also supports -- for example, it doesn't support Epson R-D 1 raw files, so DNG files converted from Epson raw files aren't supported either.