You can't interact with it on your PC (as far as I know) but it works on my phone. There should be a little button with a plus sign or paper plane on it where you can create a new plane. Might take some time to appear on first start.
Yeah, it took a good 4-5 minutes for it to start doing anything on my phone... Would be nice if there was some fallback for when it's loading, so I'm not just staring at a 'blank' screen, wondering if anything is happening.