If you wish to use Mathematica on your standard PC, Pocket PC, Palm, iPAQ, other PDA or a smartphone, you might like to take a look at WITM. http://witm.sourceforge.net/ WITM is a free (licensed under the GPL) web based front end to Mathematica. It has been written to work well on mobile devices - graphics are smaller and less text is displayed on such devices. You need a UNIX/Linux version of Mathematica and a web server with support for PHP (Apache for example). There are some screen shots at http://witm.sourceforge.net/screenshots.php and a partially working demo at http://witm.sourceforge.net/witm.php (I can't give a fully working demo due license restrictions on Mathematica. ) Dr. David Kirkby (author of WITM).