I don't use colinux but have followed its progress.
I thought I'd pass on this work being done by the FreeRDP project with a sub-project called WinPR.
in case it could be helpful.
FreeRDP if you haven't used it is an open source rdp implementation that supports
RemoteApp and RemoteFX capabilities of RDP on Linux,Mac and some users are
actually using it with their Windows PCs.