The TI-Nspire lineup maintains the same relative form factor, but offers up a few swank advancements such as multiple representations, "grab-and-move" functionality, resizing, dynamic linking, and of course, the oh-so-sweet ability to save and edit in-progress work (shown after the jump) right on the device.

ENGADGET: Texas Instruments finally gets fresh, unveils TI-Nspire calculators

Photo sharing is also getting expanded, adding more social functionality -- images can be shared with multiple friends or family members, and then those folks can comment.

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