Mmmmmm.... I'd have a punt on it I think (if I even remember!). But that philly and chocolate thing I won't go anywhere near, the thought alone makes me feel queasy.
I imagine that chocolate philly thing would taste like chocolate cheesecake filling, I really can't imagine what that smoothie would taste like though.
I'm not mad keen on chocolate cheese cake... but I like the cheese and something sweet combination so not quite sure why the idea of it makes me feel so grossed out. I'm sort of thinking that the mango and marmite thing might be like a thai sweet, sour, salty spicey thing, you know, balance of flavours and all that.
At least they have made it a limited edition so it won't be around for long. That is unless they find it sells well and then they will do it permanently.