Which devices do and do not support USB Host mode?
<p>Could someone please provide a comprehensive list of which devices do and do not support USB Host mode out of the box with no rooting, OS rebuilding, or cable hacking required?  I've read that only tablets support it.  Then I've read that the Droid supports it.  Many posts are a couple years old so not sure what is applicable now in March, 2012.  I've read that Windows phones support it?  Maybe its time to switch to that.  Does iPhone 4s support it?</p>
