Well, it now works on the iPad - after a fashion...
In landscape mode, you get a 'letterbox' shape, with no 'Home' 'Topic' etc icons at the bottom, only the Active convos page with e Search icon at the top - and when you do go to Search, the date change box doesn't show up.
It's better in portrait mode - some of the icons are visible, but they are too far over to the left, so only half the row shows.
My iPad is 4.3.3, as I haven't got round to the latest update yet.
I have screen shots, should I email them to the contacts address, or is there another one?
I haven't tried it on the iPhone yet, as there were 14 updates to get through on that, so I'm still waiting...