Originally posted by JLL
When Apple previewed Jaguar at WWDC last year, you didn't get a free upgrade if you bought 10.1 after that day.
Ok, fair enough I didn't realize that. However, if they preview panther, and then say "it will be out this summer" I would then expect a 10.2 purchaser to get the upgrade free (or for 19.95 or however the up-to-date program works).
And remember that a preview of Panther at WWDC is not a public announcement - you have to pay $1400 to see the keynote.
Whats funny is that I live in San Jose, and WWDC used to be there (until this year). The local news staitons would all do reports about it. Mentioning that Apple was holding a conference at the San Jose Convention Center, they would mention what was talked about (if it had any consumer relevance). So if Panther is previewed (and it was in SJ) I would bet to see a short blurb on it.
A third point is that this will be a preview of an unfinished product where features can change before release.
We don't know what stage it is at. It could be previewed like DP3 was previewed. It could be previewed like Jag was. Or it could be previewed as a finished product, with a release date in a month.