"The proper lifecycle of a product is that it is retired when its market share becomes negligeable. Millions of customers are not negligeable. Software, as it has been said, has no date limit, so Microsoft should continue and support its product until at least 90% of XP users have switched to something else."
Would that be until 90% of the current users have moved to something different, or until 90% of the people who used XP in 2005 have moved to something different?
90% of people still using it is somewhat of a moving target!
- XP market share is down to between 8-20% depending on who you believe and how those stats are collected.
- Given that a proportion of those are either:
> Pirate copies (80+% of XP machines in China are on pirate copies)
> Embedded XP (which is still officially supported for most of this decade)
> Desktop XP being supported past EOL by the NHS et al paying M$ many dollars
(None of which count for the purposes of this discussion since freetards get what they deserve and the other two are supported).
It is entirely reasonable to suggest that actual legitimate desktop XP share is well below 10% as people have moved to Linux, OSX, or their laptops have died - whether by baking, battery dying or hinges cracking off and have been replaced with Vista, 7 or 8.
Therefore by your own criteria, MS are well within their rights to drop it as usage is below 90%.
It's no surprise that the big holdout for IE6 usage is China, still running hooky XP with the original browser and no updates.