Mercury IM Mercury is a cool instant messaging client that connects to a public Jabber chat server. This fully functional beta release contains many refined features such as session recovery and contact manager. The new version includes addition of third party gateways directly from the device
MQIM Mobile Messenger and Conference Chat MQIM Mobile Messenger and Conference Chat -
free Mobile Instant Messenger. Having World's FIRST Cross IM Conference chat and collaboration chat on Mobile with other IMs (Yahoo, AOL, ICQ, GTalk and MSN). You can Chat, view profile, add new friends, Show Presence for each of the supported IMs.
MQIM is supporting CLDC 1
Trillian (BlackBerry) Trillian helps you organize and stay in touch with your IM and social friends while on-the-go. Receive instant push notifications, send pictures and messages, and optionally synchronize with Trillian for Mac, Windows, iPhone and Web