Vortextra

Originally developed for the Amiga, Babylonian Twins never made it to market but found life nearly 17 years later on the App Store. This platformer that has you swapping between two different characters, each with different abilities, in order to solve the many puzzles and progress through the game. It’s a lengthy and satisfying trip too, and currently you can grab the iPad version for free for the first time ever.

Haven’t tried the game yet, but for the video I saw it seems fun. And for now it’s free, so you really can’t complain.

On the heels of Apple’s e-textbook announcement in New York City this week, publisher Houghton Mifflin Harcourt announced the results of its “HMC Fuse: Algebra I” pilot program at Ameila Earhart Middle School in California’s Riverside Unified School District. The Algebra I digital textbook is touted as the world’s first full-curriculum algebra application developed exclusively for Apple’s iPad.

In its test run, the “HMH Fuse” application helped more than 78 percent of students score “Proficient” or “Advanced” on the spring 2011 California Standards Test. That was significantly higher than the 59 percent of peers who used traditional textbooks.