OS/5 is a major change from OS/4. One of the broken parts of OS/5 is debugging on the actual device. There is no emulator for the Tungsten/T or any other OS/5 device. OS/5 debugging on the simulator is debugging with similar but different code than actually runs on the device.
OS/5 is the bleeding edge of Palm development. If you are a developer who has to be sure your code works on the real device, then you have no choice but to use OS/5. But even if you must use OS/5, I recommend that you develop in the OS/4 environment, first with the emulator and occasionally on a real device. After the code is working on OS/4, confirm that it works on OS/5 devices. Be sure to read everything you can about OS/5 compatible coding techniques. As long as you don't go mucking in OS tables, your code should work the same in OS/4 and OS/5. -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
