A typo3 extension with a hook to tt_news.
Fe_users can subscribe to tt_news category and chose to recieve new news as email or sms.
The extension must act when a new news is created, selecting the users who have subscribed to the category, taking their send_method, email and mobile, sending them the news in requested method (sms/email)
The sms gateway is very simple to implement
Configuring of subscription will be required.
Typo3 experience is required!