Windows Phone Thoughts: SpaceTime Evolves to v4.0

"SpaceTime 4.0 for Windows Mobile is the most powerful mathematics program ever developed for the Pocket PC. Move, zoom and rotate 2D, 3D and time graphs in real-time. Explore mathematical concepts in an innovative interface and write your own scripts in our powerful programming language. Solve limits, derivates and integrals with MobileCAS®, the only computer algebra system with typesetting ever developed for the Pocket PC. With features only available in Mathematica and MATLAB, SpaceTime is the only cross-platform mathematics software available for computers and mobile devices."

Whether you're a student or a graphing fanatic, you'll probably adore the venerable SpaceTime. It's been updated to v4.0, delivering major changes to the user interface and full-screen graphing. To try or buy, visit the SpaceTime web site.