questions about Dapper kernel versions

[carlopmart]

Hi all,

  I am very confused about kernel versions on dapper server release:

  - Which are the differences between kernel image highend-servers and 
lowend-servers: cpus, memory?? what? where I can found docs about this?

  - Xen will be included on final dapper server release?

Thanks.

-- 
CL Martinez
carlopmart {at} gmail {d0t} com