I think there is a bug on Eido Go with move numbers and passes.
DGS and my SGF editors count each pass as a move, and change the move number with them. Eido Go does not.
We get confusion when we talk with other people about moves, by numbers, and use Eido Go as a faster reference, for us or for both people... If the game has any pass before the game ending, it won't be easy to work around.
Should be easy to fix. Or, maybe, making this a configurable option (maybe it makes sense to be like this, since it is now, and I may not be aware of it).