I have just noticed that the IBM Lotusphere page has been updated to the 2006 placeholder…

Registration will open soon, check back here for continuing updates. The registration fee will be a special low price of $1395 especially for “friends of Lotusphere” who demonstrate their loyalty by registering early. On October 15, the early-bird rate of $1595 will be in effect, and then on December 3, 2005, the standard conference fee of $1795 will apply.

Better warm up the company credit card then.