I saw this news on BBC website and came streight here fully expecting it to be present in 'News' section. I wasn't wrong.
From my personal experience. I have been trying to get hold of a 4Gs iPhone with any capacity and in any colur but can't find it anywhere in London and my service providers (O2 UK) can't supply an upgrade because they don't have any handsets in stock. On the other hand Samsung and Nokia phones are offered for free on cheap tariffs everywhere. This is non-news to us because these cheap handsets are sold bucket-loads in the Far East and South Asia. Cheap would always sell more, specially in countries with huge populations.