The Samsung exec wasn't joking when he said there will be upsized Galaxy Notes, but I didn't expect this soon - The Verge broke the news that Samsung is likely to announce a 10" version at MWC, which is less than 2 weeks away.
http://www.theverge.com/2012/2/15/27...mwc-invitation
Personally I hope they will make a 7" version - 10" is good for schooling, technical documents, and digital drawing/painting; 5" is good for usability while still remotely resembling a phone; 7" is the right size for an everyday e-reader though.
Cheers.