imessenger says delivered but not really sending

Unfortunately there is likely no fix at this time as this is beta software and things like this can happen.

Submit this as a report via your developer access assuming you are part of the program which is why you are testing iOS 7 in the first place.

 

I'm experiencing this as well. I'm sending iMessages to someone who has iMessage turned off on their device, yet it's still saying the iMessage was delivered... even though it isn't.

In reality, it should send it as a text after the iMessage fails being delivered. Hopefully this is fixed in beta 2.

 

I had this problem too, but after doing a Reset: All Settings it has been working fine.