I'm unable to send a text message to one specific person from my Droid. The error message isn't terribly hepful-- it's just a generic unable-to-send sort of thing. This happened last night when I was desperately trying to reach him and had to resort to old-fashioned talking (the horrors!), and it's still happening this morning. The friend is a US T-Mobile customer. I'm able to send to another T-Mobile customer with no problems, and the friend can send me text messages. I can also send to him via Google Voice, so at least I have a workaround. Has anyone else encountered this before? I'll call Verizon about it at some point, but I have a hard time imagining that I'll get a good answer from them.