If you’ve got the Treo 600 — arguably the best cellphone/pda hybrid around — you may find this latest little program useful or fun: Lightwav is a program that allows you to program any old MP3 or Ogg Vorbis audio file as a ringtone, or as a replacement for any system alarm like emai or SMS notification. No more bleeps and blinks, no more bad Midi sounds — real rock and roll. Cost is just $17, which is a lot cheaper than buying a bunch of different ringtones that you arguably already own the rights to.