After some development I want to present my new Jabber/XMPP client for Android. It is called Jabbroid. I contrast to every other available Jabber client it has more features, is more stable and at least I like my UI design better (regarding usability). You can join MUCs, swipe through open chats, use Geoloc (like Google Latitude but more private, since it works inside the Jabber system), use bookmarks to chatrooms and much more. The new version also features OTR in an early development state. Come and take a closer look at http://jabbroid.akuz.de
or search for Jabbroid in the market.