To start a new group chat on an iPhone, add multiple recipients to the address line of a new message.

How to Customize a Google Chat Window. The free Google Talk program lets you have text, voice and video chats over the Internet with friends and colleagues who are signed into Google Talk.

WhatsApp is adding new choices for customizing your chats, with both preset themes and mix-and-match colors for backgrounds and chat bubbles, as well as a selection of 30 new wallpapers.

WhatsApp is adding new choices for customizing your chats, with both preset themes and mix-and-match colors for backgrounds and chat bubbles, as well as a selection of 30 new wallpapers.