I had the same response from them (3) Saturday, they weren't impressed when I said funny works ok on o2's 3g network from me e61, yet if I try over Threes' 3g network from the same phone it doesn't, they suggested reinstalling the app
I can't post any info but the maps defo load, takes an age tho... perhaps server load is heavy? not that I can see it as I can muck around from the web based pages, and also if I connect the E71 to my network...