The Android app is a great idea which would help lots in theory. But "sponsored" posts are never removed so I now have two "refreshes" worth of sponsored posts (stretching back into September) which makes Active convos unusable. And the top "flash" combined with the always-present Smiley list means that I can't see where I am typing once my on-screen keyboard is up.
I have a Samsung Galaxy Ace, so not an overly small screen.