Just one small thing.. do you know what the 'G' number means? I get 3 on my GSII...
If it's the G: on the 'Your tech info page' on Orange world it refers to the particular network your currently connected to. 2G or 3G when the 4G network becomes available it will then display that.
That main article refers to the Vodafone network, not Orange? As a foot note on the article it does state an April release for Orange customers. Some network specific updates can be delayed over others due to software incompatibilities with each networks branding etc.