Samsung has a new Windows Phone handset ready for prime time. The Samsung Ativ SE runs Windows Phone 8.1, and is most likely to be announced alongside several other handsets at Microsoft's official BUILD conference next month. However, we have learnt that the unannounced Ativ SE will be arriving on April 18th, and will be available from Verizon for $599 unlocked. The 4G LTE capable handset looks good, at first glance, and would sell even better for a $100 contract price.