There is a lot of hype these days around VDI and it seems like every week there is some new VDI related product or company being announced. With all of these options available how is company ever to decide on which VDI solution to go with?
In my opinion you should first decide on whether or not you want to go with Terminal Services/XenApp or VDI. Both technologies offer the same advantages and feature sets but Terminal Services/XenApp has a much cheaper per user cost and is a proven solution that has been around for 12 years. VDI is cool, hip and is in all of the industry news but it is very young and still evolving.
In my opinion VDI is for special use cases and for applications that will not run in Terminal Services.
Brian Madden did a great session on this at VMworld Europe 2009.
Any company currently looking at VDI should watch this session and first decide if Terminal Services would work for them. If so you can save a lot of money in infrastructure costs by using Terminal Services/XenApp.