Graham Aash Works for me ?

<!--parser:xtscript--> var $device =<xt:get_device_template /> if $device ==mobile var $entries_per_page =3 var $display =1 else var $entries_per_page =5 var $display =5 endif var $blog=<xt:blog display="$display" entries_per_page="$entries_per_page" version="2"/> print $blog <!--/parser:xtscript-->

http://baretest.xtgem.com/Blog
3+ titles only on mobile
5+ title image and description on web
I have added this into http://ggnnww.yn.lt/social_button_blog
And it works there too (see first script for where to add it)