iPad 2 upgrade is thinner than the old one and offers battery life is more longer than before. Because the Lunar New Year in China, officials in January, Apple has decided to start small-volume shipments in the fourth quarter of 2011, the sources quoted.
Related to above issues, the retailers of Apple product also pointed out that iPad 2 is remains the most popular tablet PC product in the IT market today, and Apple does not need to take steps to launch a new model into the market.
Seems that better to waiting the Apple iPad new generation as Apple not yet release final confirmation regarding new tablet in 2012. Furthermore, iPad 2 Upgrade or iPad 3 is about marketing strategy, so lets wait what Apple will do.