We've received a few reports of Panther shipments. For example, Brian Johnson writes:
"Had an email from Apple UK to say my OS X 10.3 had shipped, early on the 22nd."
A few users have indicated that they may actually receive their Panther orders before Friday, October 24.
You can expect full MacFixIt coverage of OS X 10.3 "Panther" beginning on Friday. Stay tuned tomorrow for some recommendations on installation precautions and procedures.