I've used a MID1024 so far and it seems that the root folder ("/") is already mounted read/write in the factory state. So if one uses a regular file manager and navigates to a folder with privileges for anyone like /, /system or /system/app, then it's possible to edit and even delete files. That's why many things work with these models without rooting, like enabling 3G USB dongles. I think it's common to all smdkv210/Froyo based Kyros, at least. Well, then you root it (install su and Superuser.apk) but some programs refuse to work saying they can't mount the system files as read/write. Even worse, sometimes I use ES File Explorer and it seems to mount / as read-only... So everyone knows this now, and maybe we can "adjust" the system to work with most programs... Editing vstab is my first idea.