Asco does have online news as it happens:
www.asco.org .
Dr. Eric Winer is scheduled to present the clinical trial results of Lapatinib(Tykerb) on Saturday morning June 3rd. GSK has indicated that they will apply to the FDA for approval in late 2006. The drug has been fast tracked by the FDA, but I would suspect that approval won't be until early 2007.
You may ask your onc to continue Herceptin until the FDA approval of Tykerb.
Regards
Joe