Textastic is a text, code and markup editor for iPad and iPhone with rich support for syntax highlighting, FTP, SFTP and Dropbox. It will continue to be actively developed to provide you with the features you need to get your work done.
In order to achieve this, we would appreciate any and all feedback on challenges encountered when using Textastic.
Please also have a look at the manual.
Be sure to vote for the features you want to see implemented!