We have got the citi mini double and it's great but we use the single pram and a carrier at the shops.
Yeah that's what I do now, I have ds2 in a stroller and dd in my beetlebum carrier. But it's getting so hot already dd is getting quite upset in the carrier when I do my errands down town which is why I'm hunting for a pram.

Seems like striders and city selects seem to be the favorites so far.