It is a Diana Mini Jiyu - Freedom and is limited edition in honor of Japans Golden Week .... I just think it is really pretty. Diana cameras take film (you remember that stuff!) and you can get lots of lovely nostalgic effects with it.
The strap that came with it is just a thin bit of plastic, now as a Diana Mini is small and not heavy, this is probably strong enough, but it is rather plain and I wondered if being plastic, it would rub.