[fleitz]

You mean manufactures like Google themselves?

It seems to be an issue with 'Android' as no one, including Google, makes an Android phone on which you can install a modified version of Android without voiding the warranty.

[ZeroGravitas]

Geeksphone (the same folk that do a Mozilla phone) do.

[cbr]

Looking at www.geeksphone.com I don't see any phones available for purchase.