My name is Steve and I run the Sacramento Groovy Users group http://sacgru.com. This year we’ve expanded our topics to include Alternative JVM talks and we’ve had great talks recently on Scala last month and Gosu a few months back. Kotlin was a topic that some in the group asked for specifically.
With JavaOne coming up it occurred to me that our regular meetup time would be Thursday October 4th at 6:30 PM. I would be open to moving the day if it would make it more convenient for you. There are quite a few people in the group who would love to hear a talk on Kotlin and I think I could get a number of people from partner organizations in the region.
Hope someone is able to make it!