Recently I was having a heck of a time figuring out why I couldn't connect to my work machine through VPN to the console.  I could in the past, but for some reason could not anymore.  I tried a variety of settings, both on my home machine and my work machine to no avail.  Finally, after searching the web, I found that if you have Windows XP SP3 installed, the /console command doesn't work anymore.  After I read that I realized that I did indeed update my home machine (its a Virtual PC) to SP3.  With SP3 you must use /admin instead of /console.  I guess I'm not mad about the change, but what really annoys me is that the new command has no compatibility with the old command.  It simply leaves you dead in the water.  They just removed the /console parameter and removed it from the documentation also.  So the command I use now is:

mstsc /v:machinename /admin /f

I hope this saves someone the frustration I had until I found out the new paramter name.