This message probably should not have been approved for the BALUG "announce" list: http://lists.balug.org/pipermail/balug-announce-balug.org/2007-October/00009... The evidence would seem to indicate it got "approved" (perhaps someone accidentally clicked the wrong item or thought it was for a different list), though it's not impossible that it may have been passed/approved through some header forging or the like.
The message would have been okay for "talk" (that's a relatively open forum, though it could still do without all the attachments).
"announce", however should be quite low volume (like 1 to 3 messages per month) and quite topical to BALUG (not a catch-all for any and/or everything LINUX, OpenSource, etc., that anyone and/or everyone may care to announce).
If there are non-BALUG events of note that we want to mention on "announce", it's probably most suitable to include a short mention and reference to such along with one of our regular mailings to "announce" ... if at all.