Does anyone know when Swift apps can be submitted to the app store

You can link to apps in the appstore. For example:

http://itunes.apple.com/us/app/pinball-arcade/id455826958?mt=8

(This is just a random app I picked to serve as an example)

Now, if you have your link to your app, you can:

• Write a blog about the app and link to it
• Have websites review your app and they will link to it
• Does your app serve the need of a particular community? Maybe they have a forum or mailinglist where you can link to your app and explain the benefits they will get from it.
• Tweet, facebook or Google+ about the app

It's actually good you're not a developer since the inner workings of the review queue are generally cloaked under an NDA. Once you join, Apple has a dedicated site for you to ask questions like this and learn how the approval and sale process works. I believe it's common knowledge that you can list an "on sale" date when you submit an app for review and then change it later to move it earlier once it's approved, but I wouldn't want to be held to the details of how it works today.