3 ms·

I seem to remember Amazon own a patent for just this. edit: It was Microsoft: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2

I seem to remember Amazon own a patent for just this. edit: It was Microsoft: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=1&f=G&l=50&d=PG01&p=1&S1=20100175018.PGNR.&OS=dn/20100175018&RS=DN/20100175018 http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sec...

btn 14y ago
That's a patent application, which was rejected earlier this year in light of a prior IBM patent (http://www.google.com/patents/US5463725 http://www.google.com/patents/US5463725) and another of Apple's (http://www.google.com/patents/US7469381 http://www.google.com/patents/US7469381).