The best replacement for remote desktop is vnc.

The best alternatives to remote desktop are rated as following:
★★★★★  vnc
★★★★  vpn
★★★★  terminal services
★★★  logmein
★★★  remote assistance
★★  radmin
★★  gotomypc
★★  citrix
★  pcanywhere
★  teamviewer
★  remote access
★  virtual machine
★  terminal server
★  ssh
★  vdi
★  splashtop
★  screen sharing
  remotefx
  remoteapp
  ultravnc
  vpn connection
  virtual desktop
  timbuktu
  terminal service
  netmeeting

Your alternative for remote desktop is not listed? Suggest!
Speaking about remote desktop, one probably shouldn't forget about password.

Other search terms related to remote desktop and their ratings are:
★★★★★ password
★★ dual monitors
★ windows 2000
windows 7 home premium
hamachi
multiple monitors
You have in mind a companion for remote desktop and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of remote desktop in all years. Click on graph for more.
remote desktop
vnc
vpn