As part of my work on forthcoming updates to Happening, I’d appreciate a general guide to the number of people who plan to upgrade to iOS 4. It’s likely to be a high uptake, I’m guessing.

Even if you’re not a Happening user, I’d love for you to take the time to fill this in - it’s entirely anonymous and takes two whole seconds.

Thanks to any of you in advance who choose to fill this in: if you fancy sharing the poll link, I’ll gather the responses and post a summary at the end of the week.