Up until l got my X10 last week I'd didn't know the first thing about android technology.... so to say I'm a newbie is an understatement!! I've spent hours scouring sites and forums and I'm slowly getting the hang of it, I've downloaded some great apps and have managed to completely customise my homescreen. One of the apps I've installed after coming across it time and time again in 'must have apps' and 'top 10 apps' lists is Astro File Manager. I know how to actually move and delete files etc using this app (by long pressing and selecting 'edit') but what I can't get my head around is what should I be moving where? Which files should be moved to my SDcard and which ones should be left? When I open the folders there's so many files with names I don't understand in places I don't understand and I don't know where to start!!! Could somebody please explain the basics of files, folders, SDcards and how I should manage it all.......thankyou!!