This is similar to skype, so basically..bla bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
bla...
And so if someone chats with you, you will not receive any messages
because you are on "Do Not Disturb".
You can change it if you want at the Misc Settings by unchecking
the box.
(Actually, I don't see any
usefulness to this suggestion anymore, but I want to see what the
heroes say first!)
No support. Since this isn't skype and you don't get annoying
noises/notifications if someone PalPads you (that's what I'm
assuming you mean by chat) there's no need. You just have an icon
become slightly more brighter, you can ignore that pretty easily if
you don't want to be disturbed.
So... not even you are supporting your own suggestion?
And I agree with Queen_Pumpkaboo, no one forces you to read or to
reply to your messages.
And if your friends would see that you are disconnected from your
Pal Pad, then they would most likely send you a Private Message
instead.