Simple Text Editors
Text editors, such as Notepad and Text Edit for Windows, and SimpleText and BBEdit for Macintosh, are great for developing i-mode documents. In fact, they are all you will probably ever need for creating mobile Internet content because the pages you will be making are very small and simple. Also, all the listings of code in these i-mode articles can be easily reproduced in a simple text editor.
Some of the features to look for in a text editor for creating i-mode pages include the following:
Automatic word-wrap of text at the margin or at a specified column if it does not fit on a single line.
Unlimited undo/redo, even after saving, so you can try out various tags and styles and revert to previous ones if you make a mistake.
Search-and-replace functions, preferably with the ability to use regular expressions. Also, the ability to search and replace files in a directory or in all open files at one time.
File management for file copying, renaming, and deleting right from the text editor.
File comparison to highlight changes or differences in multiple files.