Facebook holding Android event on April 4

Facebook is holding another mobile-centric event, this time seemingly specifically for Google's Android operating system. Invitations for the April 4 -- not April 1! -- event went out earlier today:

Come see our new home on Android.

This, of course, has resulted in everything from yet more rumors and speculation about a Facebook phone like the supposed HTC Myst, to rumors and speculation of deeper integration, to rumors and speculation of next generation Facebook apps, to... you get the idea.

Personally, I'd love to see HTC get some more Facebook money. They did great work as an ODM in the past, and, frankly, anything to help keep them solvent and in the race would be great. Facebook is one of the very few companies on earth that could potentially launch a new, even Amazon-style forked, successful mobile operating system at this point. I've long said they'd be stupid not to have at least considered it and worked on it in the labs. Whether they ever choose to pull the trigger on it or not is another thing. They have immense mobile talent at their disposal, and that talent could also just as easily continue to work on great apps and integration for every platform.

Has anything changed in the last few months or the last year to make Facebook decide to go all in on a phone? Or are we just going to see what's next for their existing Android strategy? Like Jerry Hildenbrand of Android Central said:

We're not sure exactly what to expect, but we know Facebook does things in grand style. We'll know more next week.