I've just found an interesting short article describing João Moutinho on a quite good Spanish website called Fútbol Factory.
Here is the translation from the Spanish original:
(João Filipe Iría Santos Moutinho)
He was born on September 8th, 1986 in Portimão (Portugal). Born in the Algarve region, he spent his childhood in Portimão, where he stayed until he was 13, when he was spotted on a U-13 tournament by Sporting and Benfica.
His father, a Benfica fan, was a footballer who gained some fame through being a very prolific striker in the amateur leagues. This circumstance was enough for him to have football in his blood but not to become enchanted by Benfica, as the kid opted by choosing the club of Alvalade, where he had a spectacular progress.
At the age of 17 he was already the leader of the B team of Sporting and immediately he joined the first team in the pre-season, but the competition avoided his debut at the time.
Later, coach José Peseiro gave him his debut on January 23 against Gil Vicente in Barcelos and although in the beginning it was said that he had no place in the midfield side by side with Hugo Viana, soon it was obvious that this wasn't true and Moutinho started to show his enormous talent and potential.
João won a place in Sporting's midfield and he has played in the European Cups against Feyenoord, Middlesbrough, Newcastle and AZ, although the game where he really shined was in a game conting for the Portuguese Cup against Benfica in Estádio da Luz, in spite of not managing to reach the final then.
Moutinho is a versatile midfielder (61kg and 1,70m) gifted with a great working capacity and a great deal of creativity, both on his feet as well as on his head, as apart from being technically gifted, he has an amazing capacity to read the game and is very intelligent. No doubt this kid that besides all this has a character and a personality that lead to think that he will not lose his way, may become in one of the references of Sporting and of the Portuguese football of years to come.
Currently he has a youth contract (charging 1.500 Euro per month) and Sporting should accelerate immediately the improvement of his deal if they wish to retain their new jewel, as candidates to "fiancées" will surely be plenty.