The wait is over. The Facebook app for the iPhone is now a universal app that is optimized for the iPad.
Knowing the update was coming today, I installed the Facebook iPhone app on my iPad. Getting the iPad-optimized version was just a matter of updating the app.
You have to log in once with the new app to get it going. Once you're in, it's a great experience.
It reminds me a lot of MyPad+ with the swiping and sideloading windows. But it also keeps the Facebook look just like Friendly Plus.
I don't think the Facebook app has any special function that the other Facebook iPad apps do not have. But, I'm sure that will change in the future.
Here's more screenshots from the iPad app: