As was recently covered by Marissa McCorkel here at Infragistics, Microsoft's Patterns & Practices Prism Library has been open sourced... and one of my colleagues, Brian Lagunas, is helping to head up the team!
On the 24th, Brian featured some sneak peek details of Prism for Xamarin.Forms (available now on NuGet). This preview boasts features like IoC with Unity, event aggregation, commanding, MVVM support and Navigation.
Brian's actually written an incredibly in-depth article, walking you through the entire preview, with instructions and screenshots, which is available now on his blog. Also, feel free to check out the preview, read the walkthrough, check out Brian's Prism interview on .NET Rocks from earlier this week, OR you can reach out directly to Brian on Twitter and ask him about any and everything Prism related.