Mini XI inside ABAP instance ?

Greetings everyone,

I would like to get some information about what some people call 'mini XI'

It's already 2 times now that people tell me about the fact that there is a mini XI included in ECC 6.0 and that it can be used with proxies (SPROXY transactions). I've made a few searches on SDN and anytime I find info about SPROXY, it is mentioned that XI is mandatory.

Does any of you have some links/info about this mini XI stuff ?

Thank you in advance,

Seb