Got the update on my iPhone 5, so far OK . But on my iPad 3 it's FUBAR. In landscape mode can't do anything with it. In portrait none of the icons on the bottom of the screen work.
Be very careful with the iPad version of Forum Runner.
It has been broken since early November, and many people, including myself have been posting about it.
The biggest issue is that you must initially open the App in portrait mode first, then it will work correctly. And after you kill the App, then you need to do the same next time.
Also, there are other bugs when making a new post, and I've also had the list of threads go blank many times. The 1.6 version on the iPad has problems, and they've known for at least 2 months with no fix.