To Mac
Yep - we can wish - Something I forgot to mention when replying to Mixture's advice, as he/she said, as users we only see the tip of a very complex iceberg (its a long time since I coded commercially).
I bet this seems obvious and perhaps we will never know - just how well documented is the XP coding base, given its age and the conventions of 12 years ago. I would imagine the documentation base is enormous as well as the master code archives.
This would be a very complex task to take on for the open community.
The head ache is the gigantic user base.
As said earlier, normal attrition will take its toll of the XP user base as well as changes in patterns of ownership.
OK I'm one of the awkward squad for now, but I'm in a small minority. Some will go Win 7 or 8, others Mac and a lot more "Smart multifunction computing devices" and the odd % or so Linux.
Any Win 98 users still Extant?