In April 2012, Apple started shipping a slight variant on the iPad 2 that remains for sale even as the third-generation iPad has become the mainstay of the line. This new version of the iPad 2 — labeled internally as “iPad 2,4” — uses a 32 nanometer version of Apple’s A5 chip that replaces the 45nm version in the previous iPad 2 model. The processing performance is the same, but AnandTech is reporting that the 32nm model has notably better battery life (and a lower manufacturing cost). Alas, there is no way to know if any given iPad 2 uses the new chip without running an app that reports on the internals. follow link
iTunes Apps Tab in Landscape?
If your iPad is locked in landscape orientation when in the charging dock, apps in the Apps tab of iTunes will display in landscape orientation. (This also occurs when your iPad is not in the dock but connected to iTunes via the charging cable while in landscape orientation).
Quietly Revised iPad 2 Sports Better Battery Life