My friends on the VS DBPro team have just released a public CTP (community technology preview) of their first service release and you can download it here! I've been fortunate enough to have been using this service release for the past two months and it's a rock solid CTP that everyone using VS DBPro (DataDude) should install and try out.
Gert Drapers, the teams architect has a great post describing the service release as well as links to the release notes and docs.