I am not a huge fan of Facebook, and the future of Facebook makes me even more sceptic. Besides all the technological lock-in issues, I have a major problem with how Facebook makes people forget that they are communicating private things in a (semi)-public space.
This is also the reason I have turned off my Facebook wall. I consider Facebook a public communication channel, but I have experienced that many others use it for more private communication.
I much prefer to use fully open communication channels, e.g. my blog (with comments open again), Twitter, etc. Here everyone knows that the communication is public, and this also calls for much better digital communication.