All GO devices?
Well, I am looking forward to the update for my GO 930 which doesn't have any data connection apart from a USB cradle which is used to update maps from my PC.
I would welcome the ability to plan routes on the PC or tablet, including setting way points, then loading it onto the GO prior to the journey.
It would be nice to be able to route round known incidents before I set off.
However I suspect that support for legacy devices will be notable by its absence.