> - Can I decide about the administration location (eg also Delaware or does it have to be my actual location)?

> - Can I get some virtual office with address, mail forwarding, etc, sometimes offered by registry?

After incorporation, you’ll have a registered agent in Delaware with a corresponding address. We’re looking at adding support for incorporation in other geographies as we expand Atlas.

> - Is Stripe a full state approved registry or do they use 3rd party registries? What are the ongoing costs (there can be significant differences)?

We work with a third party service. More on costs here: https://stripe.com/atlas/faq#Are-there-any-additional-costs-...

> - I Striped stated as the registrant in the Delaware corp database?

Nope.