In addition, I don't think that it is as effective as telling them that it isn't ready yet and asking them for an email to let them know when it comes out.
If they risk providing their email for a product that isn't even ready yet, it shows stronger interest than for a product that they think that they will be able to use right away.
If they risk providing their email for a product that isn't even ready yet, it shows stronger interest than for a product that they think that they will be able to use right away.