Facebook using iPad Safari doesn't seem to work very well. You can use the iPhone Facebook app, but it's annoying to use an iPhone resolution app on an iPad. I recently purchased "Friendly Browser" in the app store, which is a Facebook browser for the iPad. It rather expensive at $4.99, but if you "need" a better Facebook experience on your iPad, I think it's worth it.
It doesn't give Facebook pushes, like the iPhone Facebook app does, so I kept the old app for notifications, but browse with the new one. There seem to be a few bugs in it, but i think it's pretty good.
Dar