Show HN: Get a ride with friends (and their friends) to the same party/event

www.levar.me I built an Android app that shows you which Facebook friends (and their friends) are going to the same party/concert/conference as you. It then let's you chat to the other person so you can figure if you're splitting a cab or a ride. The app was launched a week ago, and it's still very alpha (read: buggy). That said the app relies on partnerships with clubs for promotion and revenue. I was wondering if the HN community has experience with 'B2C2B' apps. I'd love some honest, sincere feedback this community is well known for.