Yes is the quick answer to the question. This is pretty common in large organizations for design departments or knowledge workers that need access to Creative Suite applications. Although most of the links and documents is on CS5, I have not heard about problems in CS6. InDesign does not require OpenGL hardware acceleration.
Here are some links on the Adobe web site:
(unfortunate typo in Adobe's document title)
The Citrix Ready Community Verified site also has customer comments on how to run InDesign on XenApp 6.x.
Judging from the number of votes (11) on http://community.citrix.com/citrixready/product/adobe+indesign+cs4+v6+0, there are numerous companies doing this, both on XenApp and XenDesktop, however it is hard to track who does what in our installed base.
Hope this helps.
Thanks, we'll look into the information you provided.