I think they've flown in OT&E. I've seen pix with them loaded on Eglin birds but we have to wait for M6.1 with UAI, I think (2013) - but who knows, if it's important enough they could make it happen faster.
Last week the first Belgian M6.1 MLU bird has started it's test phase. So full deployment of that package is foreseen for late 2012. Apart from the fact that the Belgians most probably won't buy any SDB's, but just as an example that the European MLU birds will have the possibility from late 2012.
F-16 Blk 40/50 M6.x gives the Falcon UAI (CV01 build, see second graph). IIRC, this is how it's getting SDB, not through traditional integration (the dates line up anyhow). This includes EPAF (European Participating Air Forces) F-16 aircraft.