There are a number of ways to get in touch and ask a question.
We have a number of mailing lists for asking questions about OneBusAway. Mailing lists are a good way to get help not just from us, but the entire OneBusAway community as well. Maybe your question has already been answered there?
OneBusAway developers occasionally hang out at
#onebusaway on FreeNode.
If one of the mailing lists isn't appropriate for your question, you can always send us an email at firstname.lastname@example.org.