The very popular Nimbuzz! Messenger for Blackberry devices has now issued an update that will surely please all. This version of Nimbuzz! now works with .4XX+ OSs and even my .509 Curve 8330 Hybrid from Nathanix. The company obviously listened to their users and issued this.
I personally like Nimbuzz! because I can keep in touch with Gtalk and Facebook chats on the go. Had to leave it cause it did not work with my OS but now it does.