I saw a headline in a Canadian paper (Globe and Mail - I think) but I can't find a link online. Anyway the headline was something like "It's over for Armstrong" a bit misleading because the article simply says what we all know which is he is out of contention for the GC. I suspect it's headlines like this or similar that are creating an impression he has quit.
Personally I don't think he'll quit - I think he will put a brave face on riding out the race. He may even try to cause a bit of mischief for Alberto but hopefully he'll be graceful in defeat. The spin will switch to it's all about Levi
and that was always plan B or soemthing like that 
Personally I don't think he'll quit - I think he will put a brave face on riding out the race. He may even try to cause a bit of mischief for Alberto but hopefully he'll be graceful in defeat. The spin will switch to it's all about Levi