I found free iPhone App from App Store and I thought it will be quite quick to install Typo3 App to control my site which runs on FreeBSD, like many other sites of mine. Wrong! :)
To get Typo3 App working, you need to have 'zend_framework' and 'typo3_webservice' installed in Typo3. Zend went fine until enabling autoload function. Enable => site crashed. What a ... ?