Well "Season 1" is not really a full season. It's basically to test the show out and see how well it does (I think it was in 24's regular slot before the current 24 season started?). So it's not like they pulled the plug on Prison Break half way, that was the intended schedule from the start. 24 was also suppose to be just a one season show, but it's obvious PB will be following that drawn out model too.
Ya, it sucks to have to wait until fall, but the cliffhanger should be expected since the show is going to be extended.
