The best replacement for ichat is aim.

The best alternatives to ichat are rated as following:
★★★★★  aim
★★★★  facetime
★★★★  skype
★★★  adium
★★  imessage
★★  msn messenger
★★  messages
★  facetime mac
★  yahoo messenger
  google talk
  facetime better
  aol instant messenger
  imessages

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

Other search terms related to ichat and their ratings are:
★★★★★ aim
★★★ yahoo
★★★ skype
★★ msn
★ apple id
★ facetime
★ facebook
★ google talk
★ imessage
aim account
msn messenger
You have in mind a companion for ichat and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of ichat in all years. Click on graph for more.
ichat
aim
facetime