WTO "not set in stone"

On the brink of the WTO Hong Kong meeting, DG Lamy set out his view of the future progress of the meetings and their goals. The most interesting thing for me in the speech is the comment on the agreement to amend TRIPS (subject to ratification - see previous posts). This is noted to be the first amendment of a WTO Agreement and is seized upon as an example that "rules are not set in stone" - and that substantive progress can be made in WTO discussions. Good to see IP having such a prominent role - what else might be achieved in Hong Kong?