The Best iPhone IM App category in About.com's 2012 Readers' Choice Awards spotlights the year's best instant messaging client for iPhone, iPod Touch and iPad devices. Learn more about the Best iPhone IM category and what makes a great instant messenger here.

Cast Your Vote for These 2012 Best IM Categories

• Best IM Client Overall
• Best Windows IM
• Best Mac IM
• Best Business IM
• Best Web Messenger
• Best Android IM App
• Best Blackberry IM App
• Best IM for the Mobile Web
• Best Webcam Chat
• Best Chat Rooms

Vote for the Best Instant Messengers today! The voting period closes Wed., March 21, 2012.