I am not in favor of extending the 30 min time limit. Remember not all players who participate can handled 45 min matched or 1 hour best 2 out of 3 swiss. My daughter has finally started playing, she has an impressive attention span for a 4 1/2 year old, but I do not think she could concentrate though a tournament of 45 min rounds.
When discussing these rules changes is important to think how they will impact all age groups who participate in Pokemon organized play. The problem is not with the time limit, but with the current end of game procedure. It gives way to much of an advantage to the player whose turn it is when time is called. I was horribly stalled out once in the Sierra Nevada Regionals once and if I had one more turn I would have KO's his EX for the win.
This year with G&G it is I who has been winning on the finals turn to be able to have one Pokemon with a switch pokepower and an attack that automatically KO's an opponents Pokemon (If it is tied for the lowest amount of remaining HP) is just sooooo broken. That is why we should adopt Japans end of time procedure and have the game end when time is called, and after both players have had one last turn.