Even as I type, SamMobile are busy uploading the various Samsung stock firmwares for both the S4 i9500 and i9505. Very handy if you need to re-flash your stock firmware. Interesting to see which countries/locations have the i9500 and which have the i9505. Also, which versions of Jelly Bean, Android 4.2.2, are available for each one, i.e. Vodafone UK is on MDD, whilst Germany is on the later, MDM.