Citrix XenApp 5.0 VS Terminal Server 2008 x64, in the x64 Terminal Server / Citrix forum on BrianMadden.com

I have been ased to check into what the differences or advantages would be to use Terminal Server 2008 x64 without using Citrix XenApp 5.0. Currently we are running Citrix MPS 4.0 on Windows 2003 server (x86). We have a mix of Wyse 1200LE thin clients and fat clients. We use Web Interface for fat client access and a published desktop (ICA) for the thin clients. We also have CSG in place for off site access to Citrix.

Management wants to know if there is enough benifit from XenApp 5.0 over Terminal Server 2008 to justify the purchase.

Right off the bat I'm saying that we will have to find another way to get the remote users into the system since CSG will go away.

Since we will be using RDP instead of ICA will the fat client users still get "seamless windows" for their published apps? Will I still be able to use Web Interface or will I have to come up with my own web site? If I create my own "Web Interface" will I still be able to present just the application or is my only option to present a full desktop?

As you can tell I don't really know much about native terminal server. I don't have a test lab that I can play in at this time. I will have two new servers on order in the next few weeks so I will be albe to look at native terminal server at that time.

Thanks, for your replys!
PS: If I posted this question in the wrong forum I'm sorry.

Ken ...

Start here:

http://www.brianmadden.com/blog/BrianMadden/Windows-2008-Terminal-Services-versus-Citrix-Presentation-Server--XenApp-Citrix-has-nothing-to-worry-about

Thanks Mike. That gives me a good starting point!