I have the official product guide here - rightyo ho - hmm not very clear but basically you can add the mini booster to the snap in one. Says the AIO has no extra pieces to fold, stuff or lay in - that it is a one piece deisgn. WHY DON't WE HAVE ANY AIO????
Then - just to add to the panic of not having one of the designs ... there is the bitti boo - made from bamboo velour and need a cover
There seems to be a great second hand market for them on cnt and mn. Buy something more reliable - I am loving the dream dri and pop in atm - wasn;t a fan before but have been converetd with the new microfleece one!