To say it into the more elaborated french: I give a rat ass for the mentioned project, and it only seemed to me interesting precisely because it would leave out of the equation exactly all the same things that some of you mentioned above... even if I reckon the merits of Desktop Virtualization and all the rest. Add to it, no affiliation with the guys from these project, so... hey!, they are the sons of your land, why should I back'em up?

...so, it was just my hope to watch from far to see if they come with something useful for my case!
Anyway, talking more seriously, I've tried in the past things along the lines of the ones mentioned above; and even if it works fine for some things, at least at the time I've tried, some apps refused to start vía RDP/VNC... others frozen up sporadically, and a few other episodes like that... but I'm not saying it will not work. Indeed, as I said, I've used something like that a few years ago including this heavy propietary x-terminal app that I could not recall the name now.
But the problem for me is always the same, they were not so transparent, and remote file synchronization is a pain in the ass. And there are too many to try if you want to find the one that fit the bill for you:
Comparison Of Remote Desktop Software!
Let's describe a bit better the requirements, adding some desirable things. I would want something capable for the following things:
1) Run for the remote sessions the same desktop sessions from master (or server) machine user accounts.
2) Be able to run remotely every app installed into the master (or server) machine, and that without any broken menues or zombie windows, without blind preview viewports, etc. Maybe it's just me, but the times I tried had a regular freak show to watch every day. Again, that was years ago, so, my excuses if things changed (for well) since then.
3) Share among every x-terminal same customization profiles being them picked-up and not ignored.
4) Share among every x-terminal the data resources from a single vault without requiring any kind of file synchronization for every session.
5) Be able to do it via WLAN without a massive bandwidth requirement.
...and, I guess that's all!
So, well, considering the attractive WLAN possibility (NetBooks, Tablets, etc.) I'm open to try again: What do you suggest, this time avoiding commercial apps, to run an scenary like that? What is the closest case that we'll get running F.O.S.S. apps?
I mean, I don't need the whole recipe at all. Just a few (well documented/ported/tried) F.O.S.S. apps to begin with. I already know the usual suspects, so, I only need a thing like: "-Hey, I use XYZ and it works well for me!"
All the best!
Diego
EDIT: I got it, here is the one I tried years ago: "WRQ Reflection X 9.0"