According to my mechanic's contact at Shimano, there is no Flight Deck for Alfine with Di2, at least in North America. When asked about Europe, he wasn't sure.
I was kind of turned off by the cost, rather turned off by the big/ugly hub, really turned off by the big ugly controller, but very turned on by the ability to have integrated brifters - and I also liked that cool blue stripe on the brake/shift lever. But I was on the fence at best. This very well might be the straw that breaks the camel's back.
I mean - come on, guys. How stupid is it that 2 of your 3 flavors of Di2 work with the Di2 Flight Deck and the 3rd doesn't? It's not like I especially wanted one of those FD computers - they're grossly overpriced. But I sure as hell don't want one display for gear/batt and another for everything else - especially when Shimano already makes Di2 computers that display gear/batt.
It's not so much that I can't afford it or wouldn't be able to use & enjoy it, as not wanting a company to get my money when they charge that much for a half-baked solution.