I have yet to use any other remote desktop system that feels nearly as responsive as Microsoft's own RDP implementation, and I've used many. The others I've used are workable (especially over very fast links), but with every interaction there is just enough lag to continually remind you that you're running over a network connection, whereas Microsoft's RDP feels pretty much like running locally as long as you avoid gaming or high-frame-rate video.
I haven't tried their Android client yet, but I'm hoping it works nearly as well as their desktop implementation does.
I think the state of the art right now is Remmina, which allows you to connect to Windows 7 + systems. I dont know if rdesktop now allows you to do that, but (a year ago) earlier it didnt.
I have yet to use any other remote desktop system that feels nearly as responsive as Microsoft's own RDP implementation, and I've used many. The others I've used are workable (especially over very fast links), but with every interaction there is just enough lag to continually remind you that you're running over a network connection, whereas Microsoft's RDP feels pretty much like running locally as long as you avoid gaming or high-frame-rate video.
I haven't tried their Android client yet, but I'm hoping it works nearly as well as their desktop implementation does.