So, I'm way behind the times, and I know it, but I started reading the drafts of RDA last week. I'm not really that far in, and I know that it's only rough drafts, but I figured I might as well start, since at some point this is going to be a Big Deal.
Want to know what I've found so far? I may be simplifying (God knows I'm good at doing that), but I didn't find much that was earth-shattering or worldview-changing. The terms are a little different, but the rules themselves are pretty much the same, at their core. I could still use MARC. There are still statements of responsibility. There is no hand of a Library God touching down to wreak havoc upon us all.
Now, I haven't been through all of the draft documents yet, so maybe at some point I'm going to be blown away. In fact, I'm sure that will happen. Because I haven't gotten to any place yet where RDA starts looking like a FRBR mechanism. Right now it just looks like AACRII. I could only be so lucky.