Handcent Talk HD!

Handcent Talk is a cross-platforms messaging app, send free messages through your Internet connection(3G/EDGE or Wi-Fi), including voice notes, videos, pictures and texts. It is the networking messaging feature for iPhone from HandcentSMS . * Offline Messages: Even if you miss your push notifications or turn off your iPhone, Handcent Talk will save your messages offline until you retrieve them during the next application use.