I tried it on my Treo 650 and the applet loads and runs, but then doesn't accept any input from the keyboard or screen taps to enter the server, username, or password. I can tap Exit to quit the applet.
All three phones W950i, K800i and M600 are on different, probably incompatible , Java platform. I have just added new build for Sony Ericsson K800i and M600, so please check them out.
Where? They don't seem to be on the demo2 address...