Microsoft released Azure Stack TP2 Update. With this update you have to do a reinstall of your host and they have enabled Azure Stack PaaS services like SQL, MySQL and App Services. Compared with the TP1 App Services new features are enabled like Mobile and API apps:

To get started download the TP2 bits here

And for the PaaS Services:
App Service here
SQL here
MySQL here

Enjoy deploying Azure Stack!