Your comments

Well, yes, what you described is probably the way to go.
Actually, I'm not sure what you're asking for. Textastic allows you to edit files in those languages with support for syntax highlighting but you can't run the code on an iPad due to Apple's restrictions. You would have to upload them to a computer (for example using SFTP) and run it there.
thanks, I'll have a look

Hi, Textastic currently recognizes .ada .adb .ads and .a as Ada files.


Doesn't this work for you?

I found a surprisingly simple fix to the scrolling problem. Instead of opening the keyboard when the finger touches the editor I've changed it so that the keyboard only comes up when the finger is lifted and no scrolling occurred before that.

This fixes the issue. It will be included in the next update.
Please send the debug log file to support@textasticapp.com and I'll have a look.
Textastic supports TextExpander snippet expansion. Did you have a look at this app? http://www.smilesoftware.com/TextExpander/touch/index.html
Did you choose "ASP - VB" as Syntax Definition in the File Information popover? 

I just had a look at the syntax definition file and single quotes are correctly set as the start character for single line comments.

Are you using Textastic 2.1?
No, I don't have any plans for an Android version of Textastic.