Possible Lumia 720 prototype?

11_medium

A-etmkzcyaars_w_medium

WVGA resolution ensures its a mid or low budget phone, slightly inferior to Lumia 820 in specs. As we've already run out of 6,8 & 9, its obvious this phone is a 7. So is this the WP8 powered Lumia 720?

Original Source: http://www.symbiantweet.com/new-large-screened-wp8-nokia-lumia-leaked-proto