I just stumbled across a
Java Pro article from October, 2002 on the subject.
http://www.ftponline.com/wireless/rgrehan/ It covers Metrowerks' CodeWarrior Wireless Studio, Sun ONE Studio 4 Mobile Edition (formerly Forte for Java Mobile Edition), Data Representations' Simplicity, Zucotto's Whiteboard, Borland's JBuilder MobileSet, and IBM's WebSphere Studio Device Developer.
[ August 07, 2004: Message edited by: Dirk Schreckmann ]