The Mac version currently has no (S)FTP support. That's also the reason why it costs less than the iOS apps. I'll consider adding it in a future version, but I'm focusing on improving the code editor first. On Mac OS X, there are many commercial and free FTP clients that you can use to transfer your files to your servers which is not the case on iOS.

the "true :" in the new line seems to be parsed as a goto label in this case. The same happens in TextMate. If you enter something that is not a valid goto label, it works fine.

Yes, this is a bug in 1.0.

It will be fixed in the next update. 

There's already an option to show tab characters. Spaces are currently not shown.

This sounds like a sandboxing error. Do you get see an error message in the Console app?

Thanks, I'll see what I can do.