I have used all of them with AC, as a matter of fact, my PA has work stations in each of his rooms and he seems to be doing ok. My rooms however, have no PCs. I use my iPad 2 connected to my server via logmein pro and I can not be happier. It works much, much better than my wireless tablet, more stable and very speedy. Not to mention how light is the device and how easy to handle and zoom in when showing reports (I.e. growth charts, lab reports) to patients. They are left very impressed. I do not enter anything but the meds (e-prescriptions) and right click info (pmh update, etc) while in the room. I do not use my fingers or a keyboard, but an iPad pen (~$10) that i got in amazon.com. HOWEVER, I must add that I would not do this without having dragon medical hooked up to my tablet pc which now sits on my little desk just outside the rooms for immediate dictation. The good thing about AC is that you can log in into more that one computer with your user name/pw at the same time. I can not imagine how great it will be when the AC folks develop an app for the iPad but so far no way to go back for me, iPad it is over Desktops or tablets. Using version 6.02, and very very happy with AC. Looking forward to the practice mgnt version. Go AC!!