Many (although not all) Pottermore registrants who found the magic quill have been sent an email confirming they are “one of the lucky people selected for early entry into Pottermore,’ and will have the opportunity to gain access sometime before October.

This is what the email says:

We’re really excited to confirm that you are one of the lucky people selected for early entry into Pottermore, ahead of when it is open-to-all in October, to help us add finishing touches!

We will activate your account between mid-August and the end of September, so keep checking your inbox for our Welcome email. When this arrives you will be able to enter Pottermore. In the meantime, you can check the Pottermore Insider for all the latest news, updates and announcements.

We look forward to welcoming you to Pottermore.

It doesn’t seem like anyone has access to Pottermore yet. We will be updating everyone as time goes on!