The Samsung Galaxy mini 2 has quad-band 3G and GSM/GPRS/EDGE support, with 7.2 Mbps HSDPA.
There's Bluetooth 3.0 too for fast local file transfers. Then there's Wi-Fi b/g/n support with a Wi-Fi hotspot option.
The AllShare app allows you to stream content to and from various devices (TV or computer) over DLNA.
The mini 2 also features the ability to read NFC tags. Settings for this can be found in the Tags app, which lets you create and manage your tags.
The interface of the Android web browser has hardly changed.
The browser supports both double tap and pinch zooming along with the new two-finger tilt zoom. There are niceties such as multiple tabs, text reflow, and find on page and so on. A neat trick is to pinch zoom out beyond the minimum - that opens up the tabs view.
There's Flash 11 support, which means you can watch YouTube videos in the browser (albeit with a fair amount of choppiness). Flash games ran without a hitch.
The Social hub we've seen before - it combines your email accounts with social networking (Facebook, Twitter, LinkedIn) and shows all incoming messages in one list with handy shortcuts to reply, mark as favorite and so on. There's filtering by message source too, to help manage the inflow of incoming updates.
The mini 2 also comes with the Google+ and Messenger preloaded, which can take care of all your Google+ needs.