I thought it would be useful to know the version numbers for all the various builds of datadude seeing as there is nothing in the installed product that tells you.
Gert provided the information here which I'm sure he won't mind me copying into this blog:
version 2.0.50727.354 is service release 1 (Power tools v1.0 does not change this version number)
version 2.0.50727.251 is RTM
version 2.0.50727.222 is CTP7
version 2.0.50727.206 is CTP6
version 2.0.50727.145 is CTP5
-Jamie