I can attest to this, and wrote a validation package to detect the differences among Java ME implementations back when I was doing mobile search apps for Java M

I can attest to this, and wrote a validation package to detect the differences among Java ME implementations back when I was doing mobile search apps for Java ME devices. A particularly annoying irony is that if you tried to use the supposedly standard ME UI classes, that's where most of the poorly spec'ed behavior lived, which is what all those vendors pointed to to justify doing their own UI classes. Never mind the intentionally loose specs for things like threading behavior.