Can I continue to use Win XP in Boot Camp when I upgrade to Lion?
The bootcamp partition is not affected. The only thing Apple did different in Lion is that the bootcamp drivers packaged with Lion installations only work with Windows 7, however, if you already have the Snow Leopard drivers installed on you XP side nothing will change...if you need to install a new bootcamp partition you will need to get the bootcamp drivers from your Snow Leopard DVD.