Available from the Medical Records Institute (pdf) is their latest annual survey of  EHR Trends and Usage which reveals insights into the:
Priorities for strategic decisions in IT
EHR applications and functions being implemented or planned
EHR configurations for different environments
Data capture methods being employed
Major barriers to implementing EHR systems
Mobile/wireless technologies used, concerns related to implementation, and impact on healthcare delivery
Perceived effectiveness of IT on patient safety
You can fiind it at: http://www.medrecinst.com/survey/2006/download.asp