In my opinion, good thing about Store apps is that they're are isolated. I'm not sure how robust this isolation is, but it seems that apps can't just access ra

In my opinion, good thing about Store apps is that they're are isolated. I'm not sure how robust this isolation is, but it seems that apps can't just access random files, etc, without a specifically granted permission. The permission model seems to be immature (no prompts at all, not even at install time - not sure how upgrades work; and everything requested is granted by default but can be revoked later), but the very idea of app sandboxes sounds right. A random document-editing app shouldn't be able to do mess with any parts of user profile, except for the files it was explicitly provided access to. (I wonder if there's a way to somehow hack things and re-use this sandboxing with non-Store apps...)