After pulling out of the North American PDA market last year to focus on Japan, Sony has announced that it’s ending production of its Clie line of Palm OS handhelds. Between this and the handhelds coming out of PalmOne, which are increasingly cheap-looking (and cheap-feeling — have you ever held a Tungsten T5 or Zire 72?), it’s safe to say that the high end of Palm OS based PDAs is about to disappear. Looks like I’ll be hanging on to my T2 until it falls apart.