I was excited, too. Unfortunately, it's closed-source and only syncs an app-specific directory, e.g. /Apps/Textastic, not an arbitrary directory in your Dropbox.

As a workaround, you can already reference a CSS file in your Markdown file with a style tag and it will be used in the preview.

To upload a file for the first time, please use the File Transfer screen: tap on the globe button in the "Files" section. Then select the file you want to upload in the left side and connect to the remote server and switch to the target directory in the right side.

Then tap on the "Upload" button in the bottom of the left side to upload the local file to your remote destination.

This establishes a link between the local and the remote location. So, when you open the file the next time, it will show "Upload this File" and "Download Latest" options.

I hope this helps!

When the keyboard is not up, the editor is in read-only mode so you only get options that don't change the text.

Tap on the editor to bring up the keyboard, then select text. Now you'll get "Cut" and "Paste" options.

This is the same behavior as in Apple's Notes app.

Yes, Textastic supports basic code completion for Objective-C. It is not as sophisticated as Xcode's completion though.

Yes, the behavior is slightly different. It's not that easy to fix so I figured it's not a huge issue.

Just a shot in the dark: did you jailbreak your iPad? Maybe it's a jb tweak that causes problems.

Have a look at this entry in the manual: http://www.textasticapp.com/v4/manual/lessons/How_can_I_bring_up_the_cursor_navigation_wheel.html

You should be able to scroll to the last several lines with your finger.