Well the rating is bad, bcs i would recommend anyone to stik with the old 3.1.2 version, even so it has no video function, stability and most of all the ACF function works.
ACF = All CAlls Free, which means the buddies on your list may become ACF members, and then you are able to call landline/or even mobile phone of those for free.
The new version seems to get nuts on this feature, it marks almost everyone as active ACF (curiously some are marked inanctive ACF (so i can use this plan in the old version).
Which means in fact :
The new version shows peoples number like you are able to call for free, but EVERY CALL you do is charged! Even the ones previously used to be free!
This is a big step backwards most annoyingly cannot rely anymore on the ACF Status.
Even so it might make your acount settings confused!
So if you like the ACF plan of Gizmo you better do not touch this Version !
PRO : Well it has no video and like always Computer to Computer is free anyway
CONTRA : Using it for mobile / landline you never know , if you are charged or not (well most of the times you are charged)