The Windows engineering teams are planning how 64-bit and 32-bit applications will work in future versions of the operating system, as 64-bit PCs become increasingly prevalent. They have created a survey that will enable customers to tell Microsoft what they feel the needs and priorities are for improvements in how 64-bit and 32-bit applications should function. They would really like to have your feedback, so if you’re interested, consider filling out the survey. It contains 12 questions and will take about 10 minutes to complete.
64-bit developer survey: http://survey.confirmit.com/wix/p760989518.aspx?htype=104