I just saw a notice that Family Time Games, a gaming store which is just under 12 miles north of the ICC, just south of I-465, is hosting a pre-Gen Con "Iello VIP Night" on Wednesday, July 31, 7 pm-12 am. Here's the link, and here's their blurb:
Family Time Games is proud to host Iello VIP Night, a mini GenCon prerelease/Demo night in the store.
Come play the New Ishtar and many other Iello games taught by their Demo team. Get a swag bag full of Iello games and enjoy a nice mediterranean bite to eat and drinks! The Swag bag comes with each full ticket purchase and you may add extra people for a lesser cost. Don't miss this deal and tickets are limited.
Last year they also had a shuttle which went from the store to the ICC throughout the con, although I don't see any notices about that.