I got the SM 3.6 two days ago (PAL version) and I'm very disapppointed so far.
I need to use the refresh TOC trick time every time I want a backup game to run, otherwise the game does not start.
If I use SM 3.3 (PAL version, also) I have no problem at all. Either I have missed some very basic functionality or this version is a total mess ...
BTW: I haven't tried the USB/memory card boot option, yet.
nathan