I'm having the same problems, using the geocaching website on my iPad, running safari, it takes all manner of messing about to get a cache details to pop up, zooming in and out, tapping on a cache many times. Occasionally it works first time, but that's very rare, tonight, it just will not let me press any caches and get any details up.
I've just tried to start logging my first hide, and when I'm in the box to type, every letter I type makes my keyboard disappear, so I have given up on that idea for tonight!
If developers need more info please let me now. I'm on iPad 2 running the most current update of OS and safari (have just checked there are no updates)
Cheers
Steph