Some very nice multiuser Unity applications have been released over the past couple of months. Here's a list:
Atari uses Unity to power their well-known online gaming site, games.com. Games implemented using unity include: Battleship, Boggle, Monopoly, Scrabble, Sorry!, and Yahtzee.
Vyew is a free webconferencing tool that includes screen sharing, file sharing, whiteboarding, chat, shared searching.
Seite1girl is a live exhibition promoting a line of lingerie for the German clothing store C&A. Every evening from 20:30 to 24:00 (German time), a video projection in front of the store displays models wearing the lingerie. The specific poses are chosen by users online at http://seite1girl.de, and the reactions to those poses by passersby are broadcast via streaming video back to the web site. The project is a collaborative effort by the newspaper "Bild Zeitung" and C&A.
Tampopo is an art exhibition by Kentaro Yamada in which users can blow the seeds off a virtual dandelion. One blow can affect not only the dandelion in the gallery but also other dandelions on the network (or internet). A number of viewers can blow each other's dandelions from remote locations. For more information on Yamada-san's work, see: http://www.kentaroyamada.com
Though it's common knowledge now, I figure Adobe's acquisition of Macromedia is worth an official blog post for posterity. The acquisition completed on December 3, 2005.
One key impact on Flash is the integration of PDF into the universal client project, code-named Apollo. Note, however, that Apollo is not the same thing as the Flash Player web browser plug-in; Adobe has unequivocally confirmed that there are no current plans to merge Acrobat Reader with the Flash Player web browser plug-in.
Read all about the acquisition here:
[ed: this post was edited on December 9 to clarify Adobe's plans to integrate PDF with Apollo]