I was quite surprised to see that the accelerometer is not supported for the ES400 in the latest emdk.  Seems that it only supports the MC67.
 
I'm looking for an alternative method to get position data so that I can tell which way the user is holding the device for a photo application.  I see that there is accelerometer support in coredll.dll.  However, I don't know if this support is in wm6.5.  Does anyone have experience implementing this in cf (specifically cf v2.0)?
 
Here's a link to the very brief documentation for the coredll library:
 
http://msdn.microsoft.com/en-us/library/gg156833.aspx