The most open smartphone I'm aware of is the Nokia N900.
No. Also, compare the user interface and applications useful on a
phone with what's available for OpenBSD.
Android and Maemo are Linux-based. Symbian, iOS, Bada, Blackberry
and Windows Mobile are not.
Apple's iOS is the most BSD-ish. But that is utterly closed, and
the iPhone is dongled to the proprietary iTunes program (Mac OS,
MS Windows).
--
Christian "naddy" Weisgerber naddy@mips.inka.de