One of the things I love most about IM apps like Google Talk is that they allow you to easily keep track of what you talk about, saving your conversations with everyone you chat with.
Now, thanks to those genius boffins at Nokia's development labs you can store the SMS conversations you have on your phone. If you send and receive lots of messages with different people every day, you'll love this one because it sorts conversations by contact so you don't need to scroll through your whole list of messages to pick out the thread of a conversation with one person.
The great thing about Conversation is that it is completly integrated with your phone's message features, adding another tab that lets you view a conversation with a particular contact on your phone.
The program is pretty easy to set up. You'll need to install two separate files in the right order but once that's out of the way you'll be up and running straight away.
If you're a text addict and have a Nokia phone, Conversation offers a great way of keeping track of your message exchanges.