. . .limited edition in the press release from Basel '06 (archived on
our News Central forum if you'd care to have a look) and I'd be
surprised given the emphasis that Patek seems to be making on the
annual calendar complication if it were discontinued any time soon. Of
course I could be wrong and who knows what nefarious schemes are
compounded in the cloistered halls of our beloved brands ;-) but it
looks to be around for a while.
It's a lovely watch:

by the way although I do wish the company name were a teensy bit smaller :-) .
Jack