Evleaks said on twitter that Samsung first Windows Phone 8 handset will start to ship in 24th.
The mid-end Windows Phone 8 device was released in CES 2013. Specs:
4 inches WVGA Super AMOLED screen
MSM8960 1.5 GHz CPU
1GB RAM and 8GB ROM
5MP rear camera/1.2MP front-facing camera