I believe that there will be no problem when configure the web application to set the SessionStorage to StateServer.

We have several blog articles that might interest you.

• WebUI.NET Framework 2007 – Part 1
  This article explains about some major improvements in WebUI.NET Framework 2007 especially in performance and memory usage area.
• Built-in FileServer cache storage in Framework 2007
  This is the sequel article of WebUI.NET Framework 2007 – Part 1. It discusses about mechanism to cache data or viewstate thoroughly.
• Rich Features in Low Client Footprint
  Another research-based article that focuses in client footprint optimization topic. This article introduces the SmartWebResources™ compression technology and IIS 7 dynamic compression which surely will helps to improves the performance with a balanced server load.

Let me know if you other questions.

Thank you.