Even though we already knew the Apple WWDC 2019 keynote date before today, we just got in the all-important press invite to June's developer conference.
The actual WWDC 2019 invite doesn't offer many keynote hints, with an illustration of a unicorn head exploding with bits of code and mobile icons.
We do see the TestFlight app and Swift programming language logos (this is after all a developer conference), as well as the Apple Store games icon. Apple may shed more light on its Arcade Arcade service at the keynote.
Will there be hardware?
Apple WWDC keynotes have a mixed record on launching new hardware. Last year, WWDC was purely dedicated to software, but the year before saw new MacBook Pros, new iPads, and the premier of the iMac Pro and HomePod.
The good news is that we are due a Mac Pro 2019, and there are long been rumors about either a cheap or screen-led HomePod 2, so there's some hope that we'll see more than just software in a few weeks.