OK - let me reply on my issue
Conclusion
Issue was in NodeJS version - ubuntu pack older version of nodejs:
$ apt-cache show nodejs
Version: 0.10.25~dfsg2-2ubuntu1
Resolution:
Uninstall node from repository:
$ apt-get remove nodejs
Install NVM - nodejs verions manager
$ sudo apt-get install build-essential libssl-dev
$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.31.0/install.sh | bash
Note
Here you’ll need to restart your bash session in order to get nvm loaded - available on path (close / open terminal).
$ nvm install 5.0
$ nvm use 5.0
$ node --version
v5.0.0
$ npm --version
3.3.6
Install Ionic 2 beta
$ npm install -g ionic@beta
$ ionic --version
2.0.0-beta.17
Yahoooooooooo - it works !!!