Opera Software have moved on. There was never a 13.x or 14.x build. After 12.16, they abandoned the nice compact Presto engine and started using Chrome's Blink engine. It has some nice features and is superfast with FB, Gmail etc but missing many standard features and would be too bloated to run on our beloved N900s. Anyone still have a copy of beta 15 ie opera-mobile_12.1beta1-15~fremantle0_armel.deb ?