I did the lightning talk at NVDACON on learning foreign languages using NVDA. I really enjoyed the conference, and really enjoyed making this contribution. I definitely want to do a session next year, and will send in my list of ideas to the NVDACON planning team, as soon as I figure out who they are.
I got a lot of private messages and some email from people who were very disappointed my session was cut short. I totally understand why it was done, and I should have planned a full session instead of a lightning talk. But this was my first time, so I didn't want to  have empty time to fill.
Anyway, my presentation included a handout and I was more disappointed there wasn't an easy way to distribute it and that it still hasn't shown up on the NVDA Con site together with a recording of my presentation.
I think if we want this conference to have more professional speakers, we need to be a little more professional ourselves. For example, my handout would have answered many questions users might not have had a chance to ask, and encouraging other presenters to prepare handouts would go a long way towards solving the problem of people being in an inconvenient time zone. Having recordings promptly available too would help.
I know we are all volunteers, but I'd encourage people on the list with skills like writing and recording to step forward and contribute as well, so the few people who are tasked with running next year's con will have more help.