I get email and know that some of you are thinking about thin clients in your organization. I have always tried to be honest and describe what works and what doesn't.
After a good amount of testing, we have been unable to get the HP 5735 to work well enough to put into production. They may work in other areas perfectly well, but our goal was to add ATI 9250 video cards to them and use them for the 3D desktop. Even though they have higher specs than the HP 5725, under no conditions have they ever run faster. 3D performance is very sluggish and certainly not fast enough for day to day use.
I know this isn't a perfect test, but the results seemed to correlate with Compiz "feel". It also could easily be replicated by anyone else. For my test, I booted an X server with just a xterm window and then connected to our remote Compiz servers and ran glxgears. The 5725 was the clear winner with 653 FPS. I also tested the onboard X1200 and then 2250 video cards.
We only purchased a few 5735s for testing, and will be moving them into our cyber cafes which don't use 3D and for that purpose they will work well.
We will continue to use the HP 5725 (which works great) until we have another device that performs as well.