Shortage of applications compared to the big two stores is the biggest handicap for Windows Phone, but Nokia says most of the popular Android and iOS products can be run on its handsets, via a partnership with ‘data wrangler’ Xyo. The Finnish firm has launched a mobile and desktop website called App#Switch, designed to demonstrate to current Google and Apple users that their favorite apps are also available on WP8 ‘ so while its total numbers may be small, nearly all the products that are most commonly used have already been ported. The site also suggests similar alternatives for apps which are not available. The service is powered by Berlin-based Xyo, formerly called Xyologic, an analytics start-up with launched its…