It didn't go great. I gave a talk about it. https://youtu.be/HySQR0t_7CI?si=5sfKbb-7u-qqD65R . (Be gentle to my 2012 self's speaking skills.)
Anyone remember this one?
Microsoft Press: Learn Java Now (complete with J++ installation CD). https://www.amazon.com/dp/1572314281
When it was announced at PDC, they only talked about WinJS and nothing else, the folks of .NET Rocks have a few shows where they mention they thought .NET was done, and they needed to refocus into something else.
The show where they interview Miguel de Icaza they go into this.
[0] https://blogs.windows.com/windows-insider/2026/03/20/our-com...
Thus better leave WinUI to the Windows team.