Well it looks like facebood has come out with a new app for blackberry users (hummm maybe we can get a code or two or three out of this baby ). Anyways I haven't tried it out on my phone but I plan to, its not moved to my list of things to do. You can get the app here:

Facebook for BlackBerry

Now PCMag did a write up and a review on it if you would like to read it.

Facebook for BlackBerry 1.5

Are you addicted to Facebook? I know I am. Instead of treating your addiction, the folks at Research in Motion are looking to feed your obsession with an updated Facebook for BlackBerry application. The app adds a number of enhancements, such as address-book and messaging integration, as well as support for comment threads and additional languages. The address-book feature is particularly nifty: Friends' Facebook photos now show up as caller ID. I've still got a few quibbles with the new version's interface, but if you're a Facebook fan with a BlackBerry, you need this app.