Various tablet market surveys give Apple’s iPad a different lead on rivals, mostly in the 60+ percent range. For example, Strategy Analytics pegged iPad’s market share in the September quarter at 67 percent (Canalys, too). A new estimate by research firm Canaccord Genuity has iPad selling a cool fourteen million units during the holiday quarter, an improvement over the 11.12 million units sold in the previous quarter, but perhaps not so much as Apple’s original projections.

Of an estimated 102.3 million tablets next year (60.3 million in 2011), they see Apple shipping 58.8 million to account for a 57 percent market share, down from 65 percent this year. Samsung should double its shipments from five million units this year to ten million in 2012 for a ten percent market share, the only non-Apple vendor with an estimated two-digit share.