It doesn't appear Sony has much to say about PS3 firmware 3.55, available ... well, now. Why? Because it seemingly only adds a security patch. We're certain that you will be much more vocal about the inconvenience of mandatory installs, the lack of certain oft-requested features, and the ongoing battle between Sony and hackers in our comments section.
From the PlayStation.Blog:
"A new PS3 system software update, v3.55, will be released soon. This is a minor update that adds a security patch."