Here you will find the currently best subnotebooks reviewed by Notebookcheck in the last months. Our list of top models is regularly updated, maintained and commented and should assist in purchase decisions.
http://www.notebookcheck.net/Top-10-Subnotebooks-July-2013.98632.0.html
is there any good 15 ultrabook available? Preferably ~15", at least full hd (in dreams narrower than 16:9), MATTE (not glossy), preferably haswell quad (or can be dual core), possibility to mount 8-16GB dual channel RAM, preferably intel iris or some not too power hungry dedicated graphic accelerator (in the worst case normal (not iris) intel integrated card acceptable).