Cingular and T-Mobile went tits up this evening. Calls are going to wrong people, to messaging servers, or nowhere at all. Cingular and T-Mobile share towers, but have mixed equipment at the towers themselves. This is just like the crossed lines of old times, and so far I can't reach any of my friends on either of those networks. Thankfully, I've given the last seven years of my life to Sprint, and am thus out of the fun loop.