Apple plans to run a series of seminars at the Digital Solutions OnDemand event in London October 21-23 at London ExCel, reports Macworld UK. Among the presentations offered will be sessions on Mac OS X 10.3 (Panther), the upcoming revision to the Mac OS. Apple will present Mac OS X, including the new features of Panther, at 10:30 a.m. each day, the site notes.