Would that not depend on the type of EFB your using Sleeve of Wizard?
Also, can anyone point me to any legislation on what constitutes an EFB? I've so far only found AWB 00-017 which seems to touch on the subject and the meanings of Class 1, 2 and 3 and also the Software Classes A, B and C but nothing too specific and the only material referenced are FAA Regs, I was kind of hoping for a bit more!