Some helpful info…..A lot of Listian's don't know how to reply to comments --If you just add a comment on your listings people won't know you are replying to them :/ You can check your notifications icon (top right of screen) and click on it, it will take you to the comment and then in the comment block (hover over w/cursor) select the blue highlighted "Reply" button OR on your "My Listia" page, scroll down the page and on the left hand side it says "Comments You Have Not Replied To" and do the same as above (clicking on the "Reply" button).
The tablet has Wi-Fi and can be used that way to add apps and surf the web. I took the tablet to AT&T and the lady said that it would work with their network. However I am not sure if it is locked or not. If it is locked I do not know how to unlock it.