I was in a hurry...going out when they "attacked" me with that surprise:
"We are proud of telling that your proposal sent at the "Call for Papers" has been aproved by the Open Source World Conference Paper Comitee for its public communication.
Actually the Conference schedule is in a preliminar elaboration stage so we are requesting ,before 28th September 2010, your availability to be in Malaga during the days of the Conference (27th, 28th or both).
Thank you for your dedication and interest, we expect to enjoy together in Malaga.
Sincerely"
*******My apologies for all the English errors in the translation, it was quite hard to translate this "premade" sentences.***********
*******Summing up: We are IN ***