IM+ is multi chat client for mobile devices. It supports iOS, Android, BlackBerry etc.
IM+ Pro supports all major IM services, including Facebook, Skype, MSN/Live Messenger, Google Talk, Yahoo!, AIM/iChat, ICQ, MeinVZ, Gadu-Gadu, RenRen, Jabber, mig33, SINA Weibo, Fetion, Mamba.Ru, VKontakte, Yandex IM, Odnoklassniki.Ru and Mail.Ru Agent.
Universal iPhone / iPod Touch / iPad app
Send text messages, photos, videos, and voice notes
Group chats in Skype, MSN, AIM, ICQ and Neighbors
Chat history, accessible in IM+ on your device and from any web browser at https://plus.im
Multiple accounts per service
Push notifications about new messages in your GMail, Hotmail, Yahoo!, and AOL e-mail inbox
Create personal and geo status messages
Customize your IM+ look and feel with themes, backgrounds, custom sound notifications and different sets of emoticons, including emoji and animated smileys
P2P encrypted messaging and Beep (in-app-purchase)
So this is an all in one chat client for you. You can get Free IM+ Pro for your iOS device for a limited time.
Requires iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.
Get it for free from here