If I'm not mistaken, they will just start selling tokens in January, they've changed the dates of the ico.
It will only start on January 25. Now they have a pre-sale
This is true. We decided to extend the token sale due to the winter holidays and growing demand to the project.
Thus, the token sale will start on January 25, 2019. But now we have a pre-sale on up until December 31. So you may take part anytime.
And do I get any benefits if I take part in the pre-sale and not the token sale?
For sure. You may get up to 88% discount during the pre-sale. This way, the price of IAM token is now only $0.05 instead of the full price of $0.4. You may keep up with the changes in the discount on the official website of the token sale: https://www.instantaccessmedical.io