The twibble software and the twibble web site is provided by spider labs GmbH, Hamburg, Germany.
twibble for the desktop is a feature rich multi-account microblogging client for twitter, identi.ca, corporate and private laconi.ca instances. For Linux, Mac, and Windows.
twibble mobile is among the best twitter clients for Java enabled devices (Nokia, Blackberry, and others). It supports all important twitter functions, uploading of photos, GPS, and more.
Tiny Twitter is just what you are looking for and it will work on ANY Java enabled phone (that’s a bunch & includes the Blackberry) and ANY Windows Mobile Pocket PC or Smartphone (they’re pretty cool).