For those unfamiliar with Secret, the app allows users to post true and false statements anonymously, which obviously makes it hard to take this rumor without casting a cynical eye upon it. On one hand though, with Microsoft now in control of the Nokia X branded models, it would make sense for the software giant to include Windows Phone in a dual boot, especially since the gang at Redmond wasn't so excited about Nokia releasing an Android powered phone in the first place.
The Nokia X2 would basically compete for the same customers as the low-end Motorola Moto E does. According to a trip to the AnTuTu Benchmark site, the Nokia X2 will have a 4.3 inch screen with 480 x 800 resolution. It is driven by a dual-core 1.2GHz Snapdragon 200 processor, with 1GB of RAM and 4GB of native storage. That tops the specs on the Nokia X, which features a dual-core 1GHz CPU and 512MB of RAM.
Years ago, Nokia launched a featurephone called the Nokia X2, so we could see a different name for the smartphone.
Anonymous post on Secret outs possible dual boot feature for Nokia X2
source: Secret via WMPoweruser