Something to keep in mind is that unless you are using the View Client on a Windows PC your thin client solution will also need to support MMR or the VM View client built-in will need to make use of the MMR that is designed into the agent. I've had different levels of success with clients.
For example, iGel does not support audio redirection, at least the resellers I am working with have no solution for me yet. The PanoLogic devices have decent audio redirection using their 2.5 DAS, but the sound is highly compressed. Wyse technology is what was licensed by VMware and performs the best of the three however it's not going to work in EVERY situation.
You need to look at what kind of audio you wish to redirect and then determine if the client extensions work for that audio. Native RDP audio redirection may work for you but that will be heavily network dependent.
