RealBabyFoodBaby I haven't got a Cloud Pet yet but I have ordered several! Have a look on YouTube for tutorials, I learned a lot from watching them!! Anybody who downloads the app can send messages to the Cloud Pet, although it doesn't go directly to the toy, all the messages are sent via the 'parental control' app, so you can screen the content before the child hears it. Some say that this is good, others say that it is a pain (but I'd rather know what my DC have access to, so for me it's a positive). They can record and send messages back, but again I think they have to go via the parent app. It is possible for children to send messages to one another from the toys, but once again, it has to go through the parent app.
I might not think it's such a great idea once my DC start sending and receiving messages from grandparents, friends and each other, but for £6 it's worth taking a chance!
They are also fairly reasonably priced on Amazon if the Entertainer doesn't have what you want in stock.