Right - remember there was that whole big naming ceremony with the bonfire in Besaid? It was in chapter 5. I forget the name as well, but it was a really wierd and pretty crappy name for a kid, IMHO. Although I still like Wakka.

Nooj, Baralai, and Gippal all agreeed to work together to build a new Spira, effecitively unifying the groups. They probably formed a party-based council, like most normal democratic systems (Not exactly fodder for a sequel. FFX-3, The Spiran elections? Come on. )

As for Yuna and Tidus, they lived happily ever after.