If you have devices which you know work fine with EEPC5 Encryption, please comment below with the device information.
E4300 - (reported by SafeBoot - his personal laptop)
As all buisiness HP laptops ship with Drive Encryption for HP Protect Tools (an EEPC derivative) we can assume 100% compatibility.
C5 (needs custom pendriver.ini file entries to support on-screen digitizer, but encryption works fine) - reported by SafeBoot
Portégé M200 (reported by SafeBoot - old laptop)
Here's a list of systems we are successfully running EE for PC 5.2.8 on as of 04/27/2011: