The best replacement for palm is blackberry.

The best alternatives to palm are rated as following:
★★★★★  blackberry
★★★★  pocket pc
★★  clie
★★  windows
★★  claw grip
★  windows mobile
★  ipaq
★  orbital sander
★  fist
★  coconut
★  claw
★  ppc
  queen palm
  nut
  coconut tree
  pocket
  palmetto
  killua
  pda
  itouch
  ipod touch
  alexander palm
  fern
  pc
  bird of paradise
  symbian
  treo
  artichoke hearts
  palmetto tree
  forearm
  foxtail
  htc
  axim
  reed palm
  soy wax

Your alternative for palm is not listed? Suggest!
Speaking about palm, one probably shouldn't forget about outlook.

Other search terms related to palm and their ratings are:
★★★★★ outlook
★★★★ hotsync
★★ isync
★ lotus notes
You have in mind a companion for palm and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of palm in all years. Click on graph for more.
palm
blackberry
pocket pc