"does that mean if anything is changed or added to the "basic" eVu that now is reported to get 20 hours on a battery charge will definitely lessen the battery power usuage????"

You mean like games? YES

eVu is specifically designed for video/audio replay to the end user, a one way bit stream. It will burn 20 hrs continuous play under the devised environment. The APIs interfaced to the end user, IMO, will be(if functioning under .nfs attributes)...nfsFIND, nfsSTAT, nfsOPEN, nfsREAD, nfsSEEK, nfsTELL, nfsCLOSE. You will be able to move freely about the contents along with specific movement within files.

doni