The best replacement for thin clients is fat clients.

The best alternatives to thin clients are rated as following:
★★★★★  fat clients
★★★★  desktops
★★★  zero clients
★★  thick clients
★  workstations
★  ncomputing
  clients

Your alternative for thin clients is not listed? Suggest!
Speaking about thin clients, one probably shouldn't forget about citrix.

Other search terms related to thin clients and their ratings are:
★★★★★ citrix
You have in mind a companion for thin clients and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of thin clients in all years. Click on graph for more.
thin clients
fat clients
desktops