The United States finished poorly among countries surveyed in their use of basic mobile technologies such as text messaging. The picture is even worse when it comes to using more advanced services, for example, mobile e-commerce and social media.
Device Index instant messaging
Software offers the security necessary for mobile workers, and is compatible with BlackBerry, iPhone, and Windows Mobile smartphones.
BeejiveIM interfaces with a variety of instant messaging services and lets you access them all from one place
Even without its workarounds for the iPhone's push data limitations, BeejiveIM is a pretty good multi-network IM client.
SHAPE's IM+ provides a way to receive instant messages when the iPhone's busy doing something else, but it does so in a barebones setting.
Don't panic when someone sends you an SMS, instant or e-mail message that seems to be written in a foreign language. This list will help you decipher the lingo so you'll know you asp from your EMA.