Walt Mossberg in his review of the Asus Eee Pad Transformer Prime:

Asus and Nvidia build in three battery modes, and I tested only the one called Normal. Unfortunately, Nvidia now says that nomenclature is misleading, and that Normal is really meant for only high-performance tasks. So, early next year, when it switches to the next version of Android, it plans to rename Normal as “Performance,” to steer users to a less power-hungry mode called “Balanced.” I can’t say how the Prime’s battery will perform in that scenario with the new OS.

I had to read that paragraph twice because I got confused. Why aren’t those features already present? Why ship the tablet with a battery mode mislabeled?