Following its invitation-only February launch, Prusa fully released the cloud slicer earlier this week.
The feature-limited 3MF generator feels like a stripped-down PrusaSlicer, and is great for quick prints you'd probably use basic settings for anyway. But it can be used from a browser or the Prusa mobile app. There are some tradeoffs compared to community print profiles, like no custom supports, but fills the gap with other flexibilities like plating multiple files in one print. Prusa has hinted at a possible subscription option for project cloud storage, but not for now.