Why not launch the new product in beta and attract signups from your current visitors? The most important product verification in my mind is having active users.
If you generate a lot of interest it's a great way to test your new product before you make the jump...
I'm in the health tech industry and thought Google Health was a great idea, but it all boils down to the doctor's office adopting the process. Many Dr's don't grasp technology very well and are usually too busy to care.
I guess they would rather have their customers sit in the waiting room filling out forms than getting them on with their day.
This will eventually be popular, just a little ahead of its time.
The company definitely has plenty of customers and the reason they need me is that they have TOO many new customers coming their way for information on the software.
I'm sure most of the customers won't have any issues with Flash at the moment since many aren't technologically advanced.
If you generate a lot of interest it's a great way to test your new product before you make the jump...