Developing a facebook chat app?

[Darren from SG4]

Blackberry devices use Java. It is also worth noting that there is already a Facebook Chat App for Blackberry.

If you are not that experienced it may help to look at an existing Jabber implementation in Java and go from there.

One such example is http://jeti.sourceforge.net/ - it is an open source project which means you will be able to look at the code and reuse it if you abide by the license terms. This will save you redeveloping something you do not need to, so you can concentrate on the part of the project that interests you.